Asa has a fungus infection on her foot termed athlete’s foot. What is an appropriate characterizat

Question 31 of 60    1.667 Points
Dylan had a major investment in the cosmetics industry, which used considerable amounts of agar. From what group of organisms is agar derived?
   A. Plants.   
   B. Sporozoans.   
   C. Foraminiferans.   
   D. Red algae.   
   E. Fungi.

Question 32 of 60    1.667 Points
If you encountered a seafloor formation that you suspected was composed largely of diatom or foraminiferan skeletal material, a diagnostic test to identify foraminiferans would detect which compound?
   A. Silica.   
   B. Carrageenan.   
   C. Chlorophyll a.   
   D. Agar.   
   E. Calcium carbonate.   

Question 33 of 60    1.667 Points
Some primitive organisms are of major commercial importance as sources of antibiotics such as penicillin. A species of which group would produce penicillin?
   A. Amebas.   
   B. Flagellates.   
   C. Ciliates.   
   D. Dinoflagellates.   
   E. Fungi.

Question 34 of 60    1.667 Points
If you examined a sample of sea water under a microscope you might observe tiny “shelled” organisms often used to add luster to fingernail polish or paint. What group would you be observing?
   A. Sporozoans.   
   B. Dinoflagellates.   
   C. Foraminifera.   
   D. Diatoms.   
   E. Red Algae.

Question 35 of 60    1.667 Points
Morgan had an illness that was likely caused by Giardia or an ameba. If you were to examine an active specimen under the microscope, how might you distinguish the two? What feature would you find in ameba that would be absent in Giardia?
   A. Pseudopods.   
   B. Flagella.   
   C. Apical complex.   
   D. Nucleus.   
   E. Chlorophyll b.

Question 36 of 60    1.667 Points
June is developing new strains of horticultural plants, and she wants to check the chromosome numbers of her specimens. What would be the chromosome composition of the petal, pollen, and megaspore?
   A. Diploid, diploid, triploid.   
   B. Diploid, haploid, diploid.   
   C. Haploid, diploid, haploid.   
   D. Haploid, haploid, diploid.   
   E. Diploid, haploid, haploid.

Question 37 of 60    1.667 Points
Germaine is interested in researching wheat plant endosperm production to maximize output, as wheat endosperm is used to make flour. How would endosperm be formed?
   A. The sperm fertilizes the egg nucleus.   
   B. An extra sperm fertilizes embryo sac cells.   
   C. The pollen tube becomes the endosperm.   
   D. It is part of the ovary.   
   E. It is part of the embryo.

Question 38 of 60    1.667 Points
You are involved in a biodiversity survey and encounter a flowering plant with parallel veins, three petals, and three leaves. How would you best describe it?
   A. Monocot.   
   B. Nonvascular.   
   C. Dicot.   
   D. Conifer.   
   E. Liverwort.

Question 39 of 60    1.667 Points
Janice is rehabilitating an ecosystem and wants to encourage moss reproduction (not quite likely, as ecosystem recovery is a HUGE project). What would be the consequence if she plucked moss sporophytes and planted them in the ground?
   A. They would fail to reproduce because mosses require water for sperm transit.   
   B. They would produce spores that would develop into gametophytes.   
   C. They would fail to thrive as they depend on gametophytes for nourishment.   
   D. They would produce spores that would form new sporophytes.   
   E. They would produce gametes that would develop into gametophytes.

Question 40 of 60    1.667 Points
Alex is studying reproduction in mosses. Where might he detect meiosis occurring?
   A. Zygote.   
   B. Gametophyte.   
   C. Archegonium.   
   D. Antheridum.   
   E. Sporangium.

Question 41 of 60    1.667 Points
Fredrica examined a specimen of a new plant species and noticed that it had very few guard cells. What might this suggest?
   A. The plant was adapted to drought conditions.   
   B. The plant was adapted to living under very wet conditions.   
   C. The plant would not require companion cells but may have them.   
   D. The plant would be lacking in companion cells.   
   E. The plant was not prone to insect attack.

Question 42 of 60    1.667 Points
Sardi grows carrots and wants to select plant specimens for seed stock that have the greatest root nutrient storage capacity. What might he select for?
   A. Large cortex.   
   B. Many root hairs.   
   C. Large root cap.   
   D. Many adventitious roots.   
   E. Large endodermis.

Question 43 of 60    1.667 Points
Jose cultivates a variety of plants for the fabric industry and is interested in genetically engineering fiber cell types. What cells type would he focus upon?
   A. Parenchyma cells.   
   B. Guard cells.   
   C. Companion cells.   
   D. Sieve tubes.   
   E. Sclerenchyma cells.

Question 44 of 60    1.667 Points
Dak is studying water storage capacity of cactus cells. What tissue should he sample?
   A. Meristematic tissue.   
   B. Dermal tissue.   
   C. Ground issue.   
   D. Vascular tissue.

Question 45 of 60    1.667 Points
Bandi the forester noticed considerable soil erosion after a hot ground fire burned away grasses on a hillside. The absence of what structures likely facilitated the surface erosion?
   A. Fibrous roots.   
   B. Root cap.   
   C. Root hairs.   
   D. Taproots.   
   E. Internodes.

Question 46 of 60    1.667 Points
Luke is a range manager who is producing forage at a rate of 1400 kg per hectare per year. Approximately how much water would such a field recycle annually from the ground to the atmosphere via the plants in order to synthesize that much biomass?
   A. 14,000,000 kg.   
   B. 1,400,000 kg.   
   C. 1,400 kg.   
   D. 140,000 kg.   
   E. 14,000 kg.

Question 47 of 60    1.667 Points
Andsi is studying the agricultural options for his patch of land in a country that is overpopulated. Which of the following would be most ecologically efficient in terms of delivering the most calories per capita, assuming his land could support any of these uses?
   A. Rice farming.   
   B. Chicken farming.   
   C. Milk production.   
   D. Cattle farming.   
   E. Fish farming.

Question 48 of 60    1.667 Points
You are studying an ecosystem in which weasels prey upon mice and you estimate that the biomass of mice is much greater than the biomass of the weasels. How is this best explained?
   A. The weasels have a reproductive problem.   
   B. The mice are difficult to catch.   
   C. The weasels must heat their bodies.   
   D. The mice are unusually large.   
   E. The weasels are unusually small.

Question 49 of 60    1.667 Points
Angel is a biologist studying a lake ecosystem in which leaf-eating insects are consumed by fish, which are consumed by snakes, which are consumed by hawks. In this example, how would you classify a hawk?
   A. Primary consumer.   
   B. Producer.   
   C. Secondary consumer.   
   D. Tertiary consumer.   
   E. Decomposer.

Question 50 of 60    1.667 Points
The principal prey of a mountain lion is deer. From your knowledge of ecology, approximately how many mountain lions per thousand deer would you expect to find in a wilderness ecosystem with no hunting by humans?
   A. 500.   
   B. 1000.   
   C. 100.   
   D. 10,000.   
   E. 2,000.

Question 51 of 60    1.667 Points
Which of the following corn seed varieties had the highest yield under conditions of no infestation?
   A. BT123   
   B. BT456   
   C. Golden   
   D. Super Harvest   

Rationale:

Question 52 of 60    1.667 Points
Photosynthesis is a biochemical reaction which converts oxygen and carbohydrates to carbon dioxide and water.
True
False

Question 53 of 60    1.667 Points
Which type of tissue would have a higher mitotic index?
   A. neither a or b, the mitotic index cannot be calculated for ovarian tissue.   
   B. normal ovarian tissue   
   C. both a and b   
   D. cancerous ovarian tissue

Question 54 of 60    1.667 Points
Risk factors associated with lung cancer include:
   A. exposure to secondhand cigarette smoke   
   B. history of certain rare genetic disorders   
   C. having had breast cancer or a family history of ovarian cancer   
   D. eating foods preserved by smoking, drying, salting or pickling   

Question 55 of 60    1.667 Points
During metaphase:
   A. Cytoplasm divides and the nucleolus reappears   
   B. Sister chromatids are pulled apart to opposite poles of the cell   
   C. DNA is in the form of uncoiled chromatin   
   D. Centrioles move to opposite ends of the cell   
   E. Chromatids are attached to a separate spindle fiber by its centromere

Question 56 of 60    1.667 Points
Increasing the temperature with the heater decrease water loss.
True
False

Question 57 of 60    1.667 Points
Under normal conditions at 21 degrees which plant had the greatest resistance to water loss?
   A. Devils ivy   
   B. English ivy   
   C. Zebra Plant   
   D. Coleus

Question 58 of 60    1.667 Points
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly:
   A. 80%   
   B. 10%   
   C. 50%   
   D. 5%   
   E. 1%

Question 59 of 60    1.667 Points
You find yourself in an area where there are snakes, hawks and coyotes. Based upon these animal populations, you are most likely in which ecosystem?
   A. You cannot tell from this information   
   B. Hot Desert   
   C. Grassland   
   D. Deciduous forest

Question 60 of 60    1.667 Points
Which of the following illustrates the correct ordering of the animals and plants in the ideal trophic levels in the ocean – starting from the lowest to the highest?
   A. sea cucumber > whales > copepods >weeds > eels   
   B. large fish > blue green algae > plants > copepods   
   C. sharks > eels > blue whales > plants > weeds   
   D. blue green algae > copepods > small fish > large fish > sharks > whales

Do you have the answers to these questions?  I need so much help on this test.  Anything will help.

Some of the others have already been answered on here: Here are 2 answers: I highlighted them

Question 31 of 60    1.667 Points
Dylan had a major investment in the cosmetics industry, which used considerable amounts of agar. From what group of organisms is agar derived?
   A. Plants.   
   B. Sporozoans.   
   C. Foraminiferans.   
   D. Red algae.   
   E. Fungi.

Question 59 of 60    1.667 Points
You find yourself in an area where there are snakes, hawks and coyotes. Based upon these animal populations, you are most likely in which ecosystem?
   A. You cannot tell from this information   
   B. Hot Desert   
   C. Grassland   
   D. Deciduous forest

1.  B. Parasitic

4.  B. Invertebrates

5. C. Ecosystem.

6.  C. The results support the hypothesis that the drug reduced blood pressure. 

54. A

I'm positive since that was on my midterm exam.

58. B

Once again, positive...this was on my midterm exam as well

I bombed this so I figured I would help

Question 1 of 60 1.67/ 1.667 Points

Ravi is an ecologist studying the pathway that a pollutant, mercury, takes as it moves through the environment, including its consumption by fish, birds, and people. What unit of nature is he studying? 
 A. Species. 
 
 B. Population. 
 
 C. Ecosystem. 
 
 D. Colonial organisms. 
 
 E. Community. 



Answer Key: C
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Question 2 of 60 0.0/ 1.667 Points

Karen is a biology student employed to count American red squirrels. What is she counting? 
 A. Ecosystems. 
 
 B. Communities. 
 
 C. Species. 
 
 D. Populations. 
 
 E. Organisms. 



Answer Key: E
Feedback: Please review Chapter 1.
Question 3 of 60 1.67/ 1.667 Points

The scientific name of the woodchuck is Marmota monax. What category of classification is the word Marmota? 
 A. Family. 
 
 B. Class. 
 
 C. Species. 
 
 D. Phylum. 
 
 E. Genus. 



Answer Key: E
Feedback: Great job!
Question 4 of 60 1.67/ 1.667 Points

Lyle is a researcher who studies the way in which the muscles work together in superb athletes. What is he studying? 
 A.  Tissues. 
 
 B. Organs. 
 
 C. Molecules. 
 
 D. Cells. 
 
 E. Organ system. 



Answer Key: E
Feedback: Good job!
Question 5 of 60 0.0/ 1.667 Points

Which of the following would be the best example of emergent properties? 
 A. All of the deer and wolves in a forest. 
 
 B. All of the deer, wolves, and plants in a forest. 
 
 C. All of the deer, wolves, plants and nonliving components of a forest, such as water, air, minerals, and pollutants. 
 
 D. All of the deer in a forest. 
 
 E. The plants of the forest producing oxygen which is breathed in by the animals. 



Answer Key: E
Feedback: Please review Chapter 1.
 
Part 2 of 14 -  5.0/ 8.335 Points

Question 6 of 60 0.0/ 1.667 Points

John was a forest biologist and was studying the effects of logging on the survival of the Downy woodpecker. He measured the population size of the woodpecker in logged and unlogged areas that were otherwise similar. In this investigation, how would you classify the woodpecker population size? 
 A. Independent variable. 
 
 B. Controlled variable. 
 
 C. Dependent variable. 
 
 D. Treatment. 
 
 E. Control. 



Answer Key: C
Feedback: Please review Chapter 2.
Question 7 of 60 1.67/ 1.667 Points

Denzel planted seeds from four types of oats in a greenhouse to determine which type of oat grew fastest. The data below show the mean lengths of the oat leaves in each test group after one week. Which data set are consistent with the hypothesis that Type C grew fastest? 
 A. A = 40 cm, B = 22 cm, C= 38 cm, D= 10 cm. 
 
 B. A = 31 cm, B = 22 cm, C= 30 cm, D= 25 cm. 
 
 C. A = 32 cm, B = 21 cm, C= 35 cm, D= 14 cm. 
 
 D. A = 12 cm, B = 15 cm, C= 10 cm, D= 12 cm. 
 
 E. A = 30 cm, B = 21 cm, C= 15 cm, D= 12 cm. 



Answer Key: C
Feedback: Great!
Question 8 of 60 1.67/ 1.667 Points

Sam was investigating the effects of forage supplements on dairy cow milk production. Which of the following would NOT be an example of a category of qualitative data? 
 A. Color of the milk. 
 
 B. Smell of the milk. 
 
 C. Taste of the milk. 
 
 D. Consistency of the milk. 
 
 E. Amount of milk produced per day. 



Answer Key: E
Feedback: Very good!
Question 9 of 60 1.67/ 1.667 Points

Per was studying forest wildlife. Which of the following would be an example of a category of quantitative data? 
 A. Presence or absence of dragonflies. 
 
 B. Presence or absence of mink. 
 
 C. Number of moose. 
 
 D. Presence or absence of otters. 
 
 E. Presence or absence of deer. 



Answer Key: C
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Question 10 of 60 0.0/ 1.667 Points

Patrick found that the level of water pollution was very high downstream from a factory. What is a reasonable conclusion form this investigation? 
 A. There is no evidence of pollution. 
 
 B. His observation supports the hypothesis that the factory causes pollution. 
 
 C. He has proven that the factory causes pollution. 
 
 D. The factory definitely causes pollution. 
 
 E. It is unknown whether the factory caused the pollution. 



Answer Key: E
Feedback: Please review Chapter 2.
 
Part 3 of 14 -  5.0/ 8.335 Points

Question 11 of 60 1.67/ 1.667 Points

Damita was studying the effects of the pesticide TBT and noticed that it caused fish to produce sperm lacking flagella. What would be the consequence to the sperm? 
 A. Impaired energy processing. 
 
 B. Impaired cell division. 
 
 C. Impaired mobility. 
 
 D. Impaired food absorption. 
 
 E. Impaired waste removal. 



Answer Key: C
Feedback: Very good!
Question 12 of 60 1.67/ 1.667 Points

Grace over-watered her plants, causing an extreme hypotonic environment for the plant cells. What protects the plant cells from bursting? 
 A. Plasma membrane. 
 
 B. Vesicle. 
 
 C. Cell wall. 
 
 D. Cytoskeleton. 
 
 E. Vacuole. 



Answer Key: C
Feedback: Very good!
Question 13 of 60 1.67/ 1.667 Points

Yetty was a cell biologist studying how pollutants may impair the way that cells stick to each other’s outer layer in formation of an embryonic fish. Which cell component is she studying? 
 A. Cell wall. 
 
 B. Plasma membrane. 
 
 C. Prokaryote. 
 
 D. Cytoplasm. 
 
 E. Cytoskeleton. 



Answer Key: B
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Question 14 of 60 0.0/ 1.667 Points

Van had HIV, a viral disease, in which his cells were tricked into taking in viruses as the viruses activated a cell surface protein. How would you describe the manner in which the viruses get into his cells? 
 A. Bulk-phase endocytosis. 
 
 B. Active transport. 
 
 C. Facilitated diffusion. 
 
 D. Pinocytosis. 
 
 E. Receptor-mediated endocytosis. 



Answer Key: E
Feedback: Please review Chapter 5.
Question 15 of 60 0.0/ 1.667 Points

Jackie suffered from Pearson syndrome, a disease involving multiple organ failure due to missing mitochondrial DNA. What would be the most likely direct consequence of the missing DNA? 
 A. Impaired energy processing. 
 
 B. Impaired food absorption. 
 
 C. Impaired water absorption. 
 
 D. Impaired cell division.   
 
 E. Impaired preparation of enzymes and hormones. 



Answer Key: A
Feedback: Please review Chapter 5.
 
Part 4 of 14 -  3.33/ 8.335 Points

Question 16 of 60 1.67/ 1.667 Points

Watson and Crick discovered the twisted molecular shape of DNA by drawing upon the investigations of other scientists. The work of which scientist was of most value in revealing the helical form of DNA? 
 A. Friedrich Miescher, who isolated DNA from a variety of cells. 
 
 B. Rosalind Franklin, who bombarded DNA with x-rays. 
 
 C. Pheobus Levene, who found that nucleic acids contain three main parts. 
 
 D. Erwin Chargaff, who measured the ratio of DNA components. 
 
 E. Oswald Avery, who transformed bacteria using purified DNA. 



Answer Key: B
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Question 17 of 60 0.0/ 1.667 Points

If a DNA molecule containing the base sequence 5’ CCGTAT 3’ unzipped during replication, what would be the complementary sequence of ITS OLD PARTNER’S NEW strand? 
 A. 5’ GGCATA 3’   
 
 B. 3’ CCGTAT 5’ 
 
 C. 3’ GGCATA 5’   
 
 D. 5’ CCGTAT 3’ 
 
 E. 3’ GGCCTA 5’ 



Answer Key: D
Feedback: Please review Chapter 9.
Question 18 of 60 1.67/ 1.667 Points

Jacob is a geneticist studying the composition of histone proteins. What class of molecules would he be concerned with? 
 A. Nucleic acids. 
 
 B. Amino acids. 
 
 C. Bases 
 
 D. Pyrimidines. 
 
 E. Purines. 



Answer Key: B
Feedback: Very good!
Question 19 of 60 0.0/ 1.667 Points

Harriet isolated a clam gene and was studying its possible functions. How might you best describle the likey gene products? 
 A. One potein. 
 
 B. Multiple polypeptides. 
 
 C. One amino-acid. 
 
 D. One polypeptide. 
 
 E. One enzyme. 



Answer Key: B
Feedback: Please review Chapter 9.
Question 20 of 60 0.0/ 1.667 Points

Which of the following would be considered a gene? 
 A. A sequence of amino acids. 
 
 B. A single protein. 
 
 C. A sequence of nucleotides. 
 
 D. Multiple polypeptides. 
 
 E. A single polypeptide. 



Answer Key: C
Feedback: Please review Chapter 9.
 
Part 5 of 14 -  5.0/ 8.335 Points

Question 21 of 60 1.67/ 1.667 Points

Devin had a wart on his hand that his doctor said was a noncancerous tumor. How would you classify the wart? 
 A. Metastatic. 
 
 B. Benign. 
 
 C. Malignant. 
 
 D. Carcinoma. 
 
 E. Transformed. 



Answer Key: B
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Question 22 of 60 0.0/ 1.667 Points

Erin examined her somatic cell karyotype and saw 23 pairs of homologous chromosomes. What is a homologous chromosome pair? 
 A. One set that came from her mother. 
 
 B. Two chromosomes, one inherited from her mother and one from her father. 
 
 C. One chromosome from one parent that has duplicated in Erin’s cell. 
 
 D. One set that came either from her father or from her mother. 
 
 E. One set that came from her father. 



Answer Key: B
Feedback: Please review Chapter 12.
Question 23 of 60 1.67/ 1.667 Points

Arrange the following events of meiosis in sequence: (1) Crossing over, (2) second division, (3) synapsis. 
 A. 1>3>2. 
 
 B. 2>1>3. 
 
 C. 1>2>3. 
 
 D. 3>1>2. 
 
 E. 2>3>1. 



Answer Key: D
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Question 24 of 60 0.0/ 1.667 Points

If a mosquito with six chromosomes was developing a sperm cell, how many chromatids would be present at anaphase of meiosis I? 
 A. 2. 
 
 B. 12. 
 
 C. 24. 
 
 D. 3. 
 
 E. 6. 



Answer Key: B
Feedback: Please review Chapter 12.
Question 25 of 60 1.67/ 1.667 Points

List the following in sequence: (1)anaphase, (2) interphase, (3) prophase, (4) telophase, (5) metaphase. 
 A. 5>3>1>4>2. 
 
 B. 2>1>3>5>4. 
 
 C. 3>1>4>5>2 
 
 D. 1>2>3>4>5. 
 
 E. 2>3>5>1>4 



Answer Key: E
Feedback: Very good!
 
Part 6 of 14 -  3.33/ 8.335 Points

Question 26 of 60 0.0/ 1.667 Points

Andrea works with an electron microscope and observed bacteria covered with small particles of a type that could inject their genes into the bacteria. What would these be? 
 A. Phages. 
 
 B. Archaea. 
 
 C. Chlamydia. 
 
 D. Viroids. 
 
 E. Prions. 



Answer Key: A
Feedback: Please review Chapter 19.
Question 27 of 60 1.67/ 1.667 Points

Bonnie tells you that she has had many viral infections and is concerned about getting cancer. Which of the following is a potential cause of cancer? 
 A. Influenza. 
 
 B. Common cold. 
 
 C. Chicken pox. 
 
 D. Hepatitis. 
 
 E. Measles. 



Answer Key: D
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Question 28 of 60 1.67/ 1.667 Points

Which of the following would you expect to find in a bacterium but not in a virus? 
 A. DNA. 
 
 B. Ribosome. 
 
 C. Carbohydrate. 
 
 D. Lipid. 
 
 E. Protein. 



Answer Key: B
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Question 29 of 60 0.0/ 1.667 Points

It is unlikely that you will catch distemper from your cat. What is one mechanism that could render some viruses host-specific?   
 A. They must shed their coats prior to reproduction. 
 
 B. They reproduce using DNA or RNA. 
 
 C. They must trigger endocytosis of a unique cell membrane. 
 
 D. They cannot penetrate cell walls. 
 
 E. They have protein capsids. 



Answer Key: C
Feedback: Please review Chapter 19.
Question 30 of 60 0.0/ 1.667 Points

Which of the following processes is NOT associated with reproduction of viruses? 
 A. Attachment. 
 
 B. Endocytosis. 
 
 C. Viral fission. 
 
 D. Lysis. 
 
 E. Assembly. 



Answer Key: C
Feedback: Please review Chapter 19.
 
Part 7 of 14 -  8.34/ 8.335 Points

Question 31 of 60 1.67/ 1.667 Points

Brandon was plagued by skin infections, particularly ringworm and athlete’s foot. The cause of these infections belongs to which of the following groups of organisms? 
 A. Fungi. 
 
 B. Amebas. 
 
 C. Ciliates. 
 
 D. Flagellates. 
 
 E. Dinoflagellates. 



Answer Key: A
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Question 32 of 60 1.67/ 1.667 Points

Robert was hiking and developed a case of “hiker’s diarrhea,” caused by a parasite found in drinking water contaminated by animals. The cause of his illness likely belonged to which of the following groups of organisms? 
 A. Fungi. 
 
 B. Flagellates. 
 
 C. Diatoms. 
 
 D. Ciliates. 
 
 E. Dinoflagellates. 



Answer Key: B
Feedback: Very good!
Question 33 of 60 1.67/ 1.667 Points

Luis had severe amnesia caused by a toxin. This occurred after he consumed shellfish that had been feeding in a red tide. In this situation toxins made by what group of organisms likely caused the illness? 
 A. Dinoflagellates. 
 
 B. Fungi. 
 
 C. Ciliates. 
 
 D. Shellfish. 
 
 E. Flagellates. 



Answer Key: A
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Question 34 of 60 1.67/ 1.667 Points

Rachel had a vaginal infection, likely caused by Trichomonas or Candida. If you were to examine a specimen under the microscope, how might you distinguish the two? What feature would you find in Trichomonas that was absent in Candida? 
 A. Flagella. 
 
 B. Chlorophyll b. 
 
 C. Pseudopods. 
 
 D. Apical complex. 
 
 E. Nucleus. 



Answer Key: A
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Question 35 of 60 1.67/ 1.667 Points

Alexis was interested in developing a water-filter business. What group of organisms have been found useful as a water filter? 
 A. Amebas. 
 
 B. Sporozoans. 
 
 C. Foraminifera. 
 
 D. Diatoms. 
 
 E. Dinoflagellates. 



Answer Key: D
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Part 8 of 14 -  5.0/ 8.335 Points

Question 36 of 60 0.0/ 1.667 Points

In a flower, what would be the chromosome number of the ovule, embryo sac, and endosperm? 
 A. Diploid, haploid, haploid. 
 
 B. Diploid, diploid, triploid. 
 
 C. Haploid, diploid, haploid. 
 
 D. Haploid, haploid, diploid. 
 
 E. Diploid, haploid, diploid. 



Answer Key: B
Feedback: Please review Chapter 23.
Question 37 of 60 1.67/ 1.667 Points

Stuart works at a nursery and is told to remove the monocts from a soil bed. What should he remove? 
 A. Rose. 
 
 B. Grass. 
 
 C. Sunflower. 
 
 D. Bean. 
 
 E. Snapdragon. 



Answer Key: B
Feedback: Well done you correctly answered this question based on Chapter 23.
Question 38 of 60 0.0/ 1.667 Points

Germaine is interested in researching wheat plant endosperm production to maximize output, as wheat endosperm is used to make flour. How would endosperm be formed? 
 A. It is part of the ovary. 
 
 B. An extra sperm fertilizes embryo sac cells. 
 
 C. It is part of the embryo. 
 
 D. The pollen tube becomes the endosperm. 
 
 E. The sperm fertilizes the egg nucleus. 



Answer Key: B
Feedback: Please review Chapter 23.
Question 39 of 60 1.67/ 1.667 Points

You are involved in a biodiversity survey and encounter a patch of wild rose shrubs. How would you best describe a rose? 
 A. Dicot. 
 
 B. Nonvascular. 
 
 C. Gymnosperm. 
 
 D. Monocot. 
 
 E. Conifer. 



Answer Key: A
Feedback: Well done you correctly answered this question based on Chapter 23.
Question 40 of 60 1.67/ 1.667 Points

Alex is studying reproduction in mosses. Where might he detect meiosis occurring? 
 A. Zygote. 
 
 B. Gametophyte. 
 
 C. Archegonium. 
 
 D. Antheridum. 
 
 E. Sporangium. 



Answer Key: E
Feedback: Well done you correctly answered this question based on Chapter 23.
 
Part 9 of 14 -  6.67/ 8.335 Points

Question 41 of 60 1.67/ 1.667 Points

Jock is a forensic botanist who is able to identify plant species under the microscope by the shape of their trichomes. What tissue is he examining? 
 A. Vascular tissue. 
 
 B. Meristematic tissue. 
 
 C. Dermal tissue. 
 
 D. Ground issue. 



Answer Key: C
Feedback: Well done you correctly answered this question based on Chapter 24.
Question 42 of 60 1.67/ 1.667 Points

Charleen noticed that some plants in her nursery were falling over. What cell type may be defective? 
 A. Parenchyma cells 
 
 B. Sieve tube. 
 
 C. Companion cells. 
 
 D. Meristematic cells. 
 
 E. Collenchyma cells. 



Answer Key: E
Feedback: Well done you correctly answered this question based on Chapter 24.
Question 43 of 60 1.67/ 1.667 Points

Nan operates a canola farm from which she sells canola oil. She notices that some seeds contain more oil than others and she wishes to research the cell storage capacity for oil. What cell type should she focus on? 
 A. Companion cells. 
 
 B. Parenchyma cells. 
 
 C. Sclerenchyma cells. 
 
 D. Sieve tubes. 
 
 E. Guard cells. 



Answer Key: B
Feedback: Well done you correctly answered this question based on Chapter 24.
Question 44 of 60 1.67/ 1.667 Points

Ethan found a large old stump in the forest and was able to determine which wood was produced during the summers. What would reveal this?   
 A. Softwood is produced in summer. 
 
 B. Outermost wood is summer wood. 
 
 C. Thin-walled cells are produced in summer. 
 
 D. Thick-walled cells are produced in summer. 
 
 E. Hardwood is produced in summer. 



Answer Key: C
Feedback: Well done you correctly answered this question based on Chapter 24.
Question 45 of 60 0.0/ 1.667 Points

Dak is studying water storage capacity of cactus cells. What tissue should he sample? 
 A. Dermal tissue. 
 
 B. Vascular tissue. 
 
 C. Ground issue. 
 
 D. Meristematic tissue. 



Answer Key: C
Feedback: Please review Chapter 24.
 
Part 10 of 14 -  3.33/ 8.335 Points

Question 46 of 60 0.0/ 1.667 Points

If you were to study a food chain in a small section of tropical forest, what concept would represent links in the chain? 
 A. Trophic levels. 
 
 B. Autotrophs. 
 
 C. Decomposers. 
 
 D. Ecosystems. 
 
 E. Energy cycles. 



Answer Key: A
Feedback: Please review Chapter 40.
Question 47 of 60 1.67/ 1.667 Points

Angel is a biologist studying a lake ecosystem in which leaf-eating insects are consumed by fish, which are consumed by snakes, which are consumed by hawks. In this example, how would you classify a fish? 
 A. Producer. 
 
 B. Tertiary consumer. 
 
 C. Primary consumer. 
 
 D. Secondary consumer. 
 
 E. Decomposer. 



Answer Key: D
Feedback: Great job!
Question 48 of 60 0.0/ 1.667 Points

In which of the following situations would you prefer a squat biomass pyramid over a skinny biomass pyramid? 
 A. Poultry production. 
 
 B. Dairy milk production. 
 
 C. Spider silk production. 
 
 D. Human-eating lions. 
 
 E. Killer whale conservation. 



Answer Key: D
Feedback: Please review Chapter 40.
Question 49 of 60 0.0/ 1.667 Points

Angel is a biologist studying a lake ecosystem in which leaf-eating insects are consumed by fish, which are consumed by snakes, which are consumed by hawks. In this example, how would you classify a hawk? 
 A. Decomposer. 
 
 B. Tertiary consumer. 
 
 C. Primary consumer. 
 
 D. Secondary consumer. 
 
 E. Producer. 



Answer Key: B
Feedback: Please review Chapter 40.
Question 50 of 60 1.67/ 1.667 Points

Valerie is a farmer who is measuring the efficiency of energy flow as part of her range management plan. Which of the following would she regard as a producer? 
 A. Pig. 
 
 B. Sheep. 
 
 C. Grass. 
 
 D. Cow. 
 
 E. Chicken. 



Answer Key: C
Feedback: Great job!
 
Part 11 of 14 -  3.33/ 3.334 Points

Question 51 of 60 1.67/ 1.667 Points

Photosynthesis is a biochemical reaction which converts oxygen and carbohydrates to carbon dioxide and water.
 
  True
 False
 



Answer Key: False
Feedback: Excellent work!
Question 52 of 60 1.67/ 1.667 Points

ECB refers to: 
 A. An insect pest that reduces corn yield 
 
 B. Edible corn byproducts 
 
 C. European corn borer 
 
 D. None of the above 
 
 E. A genetically engineered plant that is resistant to insect pests 



Answer Key: C
Feedback: Excellent work!
 
Part 12 of 14 -  3.33/ 5.0010004 Points

Question 53 of 60 1.67/ 1.667 Points

During metaphase: 
 A. Cytoplasm divides and the nucleolus reappears 
 
 B. Sister chromatids are pulled apart to opposite poles of the cell 
 
 C. Centrioles move to opposite ends of the cell 
 
 D. DNA is in the form of uncoiled chromatin 
 
 E. Chromatids are attached to a separate spindle fiber by its centromere 



Answer Key: E
Feedback: Excellent work!
Question 54 of 60 1.67/ 1.667 Points

Which type of tissue would have a higher mitotic index? 
 A. both a and b 
 
 B. neither a or b, the mitotic index cannot be calculated for ovarian tissue. 
 
 C. normal ovarian tissue 
 
 D. cancerous ovarian tissue 



Answer Key: D
Feedback: Excellent work!
Question 55 of 60 0.0/ 1.667 Points

Risk factors associated with lung cancer include: 
 A. exposure to secondhand cigarette smoke 
 
 B. history of certain rare genetic disorders 
 
 C. having had breast cancer or a family history of ovarian cancer   
 
 D. eating foods preserved by smoking, drying, salting or pickling 



Answer Key: A
Feedback: Please review Lab 2: The Cell Cycle and Cancer.
 
Part 13 of 14 -  3.33/ 3.334 Points

Question 56 of 60 1.67/ 1.667 Points

In your study which plant was most likely taken from a tropical rainforest? 
 A. The arrowhead 
 
 B. The zebra plant 
 
 C. The rubber plant 
 
 D. The coleus 



Answer Key: C
Feedback: Excellent work!
Question 57 of 60 1.67/ 1.667 Points

Increasing the temperature with the heater decrease water loss.
 
  True
 False
 



Answer Key: False
Feedback: Excellent work!
 
Part 14 of 14 -  3.33/ 5.0010004 Points

Question 58 of 60 1.67/ 1.667 Points

Which of the following illustrates the correct ordering of the animals and plants in the ideal trophic levels in the ocean – starting from the lowest to the highest?   
 A. sharks > eels > blue whales > plants > weeds 
 
 B. large fish > blue green algae > plants > copepods   
 
 C. sea cucumber > whales > copepods >weeds > eels 
 
 D. blue green algae > copepods > small fish > large fish > sharks > whales 



Answer Key: D
Feedback: Excellent work!
Question 59 of 60 0.0/ 1.667 Points

You find yourself in an area where there are snakes, hawks and coyotes. Based upon these animal populations, you are most likely in which ecosystem? 
 A. Hot Desert 
 
 B. Deciduous forest 
 
 C. Grassland 
 
 D. You cannot tell from this information 



Answer Key: A
Feedback: Please review Lab 4: Modeling Ecosystems.
Question 60 of 60 1.67/ 1.667 Points

For plants to manufacture their own food by the process of photosynthesis they need the following:   
 A. ice, water, oxygen and nitrogen 
 
 B. hot water, hydrogen sulfide gases and Fe and Mg 
 
 C. sunlight, water, chlorophyll and carbon dioxide 
 
 D. brown sugar, oil, hot sun and butter 



Answer Key: C
Feedback: Excellent work!
 

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Ben had consumed large quantities of alcohol and a muscle biopsy revealed that the alcohol had damaged mitochondria in Ben’s muscle cells. What would be the most direct consequence to cell function?