General Biology

Alzheimer's disease is characterized by ________.

Alzheimer's disease is characterized by ________.

Alzheimer's disease is characterized by ________.
A) mental deterioration, memory loss, and personality changes
B) extreme mood swings
C) loss of energy and suicidal thoughts
D) increased energy and extreme talkativeness

sunjx   36   3 Replies

han12

A person who has blurred vision caused by a misshapen lens or cornea has ________.

A person who has blurred vision caused by a misshapen lens or cornea has ________.

A person who has blurred vision caused by a misshapen lens or cornea has ________.
A) farsightedness
B) nearsightedness
C) astigmatism
D) cataracts

mewdie   36   2 Replies

mewdie

Humans domesticated the rose from a wild ancestor with large, scented flowers. Why might fragrant ...

Humans domesticated the rose from a wild ancestor with large, scented flowers. Why might fragrant ...

Humans domesticated the rose from a wild ancestor with large, scented flowers. Why might fragrant chemicals in flowers be adaptive for wild roses?
A) They attract herbivores.
B) They repel seed dispersal agents.
C) They attract pollinators.
D) Th

swaggy456   36   2 Replies

swaggy456

Adaptation to terrestrial life involved major evolutionary changes. The change from gill breathing ...

Adaptation to terrestrial life involved major evolutionary changes. The change from gill breathing ...

Adaptation to terrestrial life involved major evolutionary changes. The change from gill breathing to lung breathing was accompanied by important changes in the
A) reproductive system.
B) cardiovascular system.
C) manufacture of blood cells.
D) assoc

shrikharariji   36   1 Reply

erickgoking

Sometimes when a person in a movie is stabbed or cut, blood forcefully sprays out of the wound. This ...

Sometimes when a person in a movie is stabbed or cut, blood forcefully sprays out of the wound. This ...

Sometimes when a person in a movie is stabbed or cut, blood forcefully sprays out of the wound. This is realistic only if the severed vessel is under a high degree of pressure. Which of the following vessels, if severed, would result in the most forc

Asfian   36   1 Reply

sg000

You conduct a study with mice to determine whether giving them air with a higher than normal oxygen ...

You conduct a study with mice to determine whether giving them air with a higher than normal oxygen ...

You conduct a study with mice to determine whether giving them air with a higher than normal oxygen level results in their having a higher than normal oxygen content in their blood. What vessel should you draw blood from if you want to measure the hi

Monster Shark   36   1 Reply

Melina Hoxha

The second vaccination is beneficial because

The second vaccination is beneficial because

The second vaccination is beneficial because
A) it contains plasma cells that survive longer than 45 days.
B) it stimulates production of a higher concentration of antibodies in the bloodstream.
C) it requires two injections to stimulate antibody for

killak   36   1 Reply

rmstoney1

When humans are cold, they often shiver. Shivering increases their ________, thereby warming their bodies.

When humans are cold, they often shiver. Shivering increases their ________, thereby warming their bodies.

When humans are cold, they often shiver. Shivering increases their ________, thereby warming their bodies.
A) metabolic heat production
B) insulation
C) circulatory adaptation
D) evaporative cooling

goldensteeez   36   1 Reply

gsmith9495

Prednisone is a synthetic version of what natural hormone that is often prescribed to individuals ...

Prednisone is a synthetic version of what natural hormone that is often prescribed to individuals ...

Prednisone is a synthetic version of what natural hormone that is often prescribed to individuals who are suffering from redness and swelling due to allergies?
A) mineralocorticoid
B) glucocorticoid
C) estrogen
D) progestin

loweba1   36   1 Reply

Ajumper1

Which of the following statements regarding birth control is true?

Which of the following statements regarding birth control is true?

Which of the following statements regarding birth control is true?
A) The most widely used birth control pills contain a combination of FSH and LH.
B) Natural family planning is generally reliable.
C) Morning-after pills taken within three days of un

Celeste23   36   1 Reply

spsjr15

Which of the following events occurs first during embryonic development?

Which of the following events occurs first during embryonic development?

Which of the following events occurs first during embryonic development?
A) gastrulation
B) neurulation
C) cleavage
D) organ formation

helpmepls   36   1 Reply

Charline091486

Muscles that are constantly active, such as those maintaining our body posture, have a high proportion of

Muscles that are constantly active, such as those maintaining our body posture, have a high proportion of

Muscles that are constantly active, such as those maintaining our body posture, have a high proportion of
A) fast, fatigue-resistant fibers.
B) fast, fatigue-susceptible fibers.
C) slow, fatigue-resistant fibers.
D) slow, fatigue-susceptible fibers.

hugangster   36   1 Reply

JennMMiller22

Most trees and shrubs continue to grow year after year. Such plants are known as

Most trees and shrubs continue to grow year after year. Such plants are known as

Most trees and shrubs continue to grow year after year. Such plants are known as
A) biennials.
B) perennials.
C) annuals.
D) superannuals.

ellehaine24   36   1 Reply

arusha_momin

Foreign genes can be inserted into a single plant cell that is then cultured to produce

Foreign genes can be inserted into a single plant cell that is then cultured to produce

Foreign genes can be inserted into a single plant cell that is then cultured to produce
A) a genetically modified plant.
B) genetically modified seeds.
C) a new plant species.
D) clones of the organisms from which the genes were taken.

Shyshy   36   1 Reply

JennMMiller22

Which structure in the image has a different number of chromosomes than the others?

Which structure in the image has a different number of chromosomes than the others?

Which structure in the image has a different number of chromosomes than the others?
A) structure A
B) structure B
C) structure C
D) structure D

sophiegiu   36   1 Reply

cliffy420

If you examine the soil profile revealed by a fresh road cut through a grassy rise, which of the ...

If you examine the soil profile revealed by a fresh road cut through a grassy rise, which of the ...

If you examine the soil profile revealed by a fresh road cut through a grassy rise, which of the following features will you probably find in the B horizon?
A) an abundance of worms and burrowing insects
B) an abundance of decomposing organic materia

traggthuyy@gmai   36   1 Reply

pclim

The data provide evidence for which of the following?

The data provide evidence for which of the following?

The data provide evidence for which of the following?
A) The copper removal percentage was approximately doubled by the presence of the plants used to remediate the soil.
B) Before restoration efforts, there was twice as much lead in the soil as cadm

Barbmat   36   1 Reply

andrea sarah

Christmas cactus is a short-day plant that usually blooms in the winter. Which of the following ...

Christmas cactus is a short-day plant that usually blooms in the winter. Which of the following ...

Christmas cactus is a short-day plant that usually blooms in the winter. Which of the following strategies might induce it to bloom for the 4th of July?
A) putting it in a cool, well-lighted place from time to time during June
B) leaving it in a dark

rossn   36   1 Reply

nedstarktheknic

In terms of global air circulation, the tropics are a region where air

In terms of global air circulation, the tropics are a region where air

In terms of global air circulation, the tropics are a region where air
A) descends and warms, dropping rain.
B) rises and warms, creating an arid belt.
C) rises and cools, creating an arid belt.
D) rises and cools, dropping rain.

elmajn   36   1 Reply

s0073123

The evolutionary explanations for behavior are called the

The evolutionary explanations for behavior are called the

The evolutionary explanations for behavior are called the
A) evolutionary schematics.
B) selected advantage.
C) proximal causes.
D) ultimate causes.

yaciel143@yahoo   36   1 Reply

muchkinnn

Which of the following statements about chimpanzee behavior is true?

Which of the following statements about chimpanzee behavior is true?

Which of the following statements about chimpanzee behavior is true?
A) Only female chimpanzees are organized in a dominance hierarchy.
B) Alpha males assert their status by making plant stems into tools for food extraction.
C) Social primates do not

orengo   36   1 Reply

steski89

Given that CO2 is produced by cellular respiration, why does the amount of CO2 in the atmosphere ...

Given that CO2 is produced by cellular respiration, why does the amount of CO2 in the atmosphere ...

Given that CO2 is produced by cellular respiration, why does the amount of CO2 in the atmosphere remain relatively constant? (When answering this question, exclude the impact of human activities on atmospheric CO2.)
A) CO2 is converted in photosynthe

alexweebz   36   1 Reply

JSifuentes17

Which trophic level in this food chain represents the secondary consumer?

Which trophic level in this food chain represents the secondary consumer?

Which trophic level in this food chain represents the secondary consumer?

 

A) trophic level A
B) trophic level B
C) trophic level C
D) trophic level D

skawa1991   36   1 Reply

rmstoney1

Which part of the mitochondrion shown enhances its ability to produce ATP by increasing the surface ...

Which part of the mitochondrion shown enhances its ability to produce ATP by increasing the surface ...

Which part of the mitochondrion shown enhances its ability to produce ATP by increasing the surface area of a mitochondrial membrane?

 
A) structure A
B) structure B
C) structure C
D) structure D

skypeaches   36   1 Reply

emmamohdisa97

The fluorescent tag likely did not become incorporated into which of the following organelles?

The fluorescent tag likely did not become incorporated into which of the following organelles?

The fluorescent tag likely did not become incorporated into which of the following organelles?
A) lysosome
B) Golgi
C) microtubules
D) rough ER

Celeste23   36   1 Reply

AZNSLOWPOKE

Which of the following is a typical feature of an ATP-driven active transport mechanism?

Which of the following is a typical feature of an ATP-driven active transport mechanism?

Which of the following is a typical feature of an ATP-driven active transport mechanism?
A) The transport protein must cross to the correct side of the membrane before the solute can bind to it.
B) The transport protein is irreversibly phosphorylated

dominicklacasse   36   1 Reply

sumeetkhirwal

Which of the following processes is endergonic?

Which of the following processes is endergonic?

Which of the following processes is endergonic?
A) the burning of wood
B) the synthesis of glucose from carbon dioxide and water
C) the breakdown of glucose
D) cellular respiration

QueenPinky   36   1 Reply

mtv12

Autotrophs that utilize light as their energy source are

Autotrophs that utilize light as their energy source are

Autotrophs that utilize light as their energy source are
A) chemosynthetic autotrophs.
B) photoautotrophs.
C) fungi.
D) heterotrophs.

Talisha   36   1 Reply

Carinasp

Both mitosis and meiosis are preceded by

Both mitosis and meiosis are preceded by

Both mitosis and meiosis are preceded by
A) prometaphase.
B) interphase.
C) prophase.
D) telophase.

Shyshy   36   1 Reply

mmondol

Which of the following statements regarding genetic testing is false?

Which of the following statements regarding genetic testing is false?

Which of the following statements regarding genetic testing is false?
A) Genetic testing before birth requires the collection of fetal cells.
B) Carrier testing helps determine whether a person carries a potentially harmful disorder.
C) The screening

rachel3430   36   1 Reply

Suliman

Given the sex determination system in bees, we can expect that

Given the sex determination system in bees, we can expect that

Given the sex determination system in bees, we can expect that
A) female bees will produce eggs by meiosis, whereas male bees will produce sperm by mitosis.
B) female bees will produce eggs by mitosis, whereas male bees will produce sperm by meiosis.

Hellohi21   36   1 Reply

Bwz1999

One type of virus that infects bacteria is called a

One type of virus that infects bacteria is called a

One type of virus that infects bacteria is called a
A) phage.
B) retrovirus.
C) rhinovirus.
D) coronavirus.

jay3istheman   36   1 Reply

jhatch16

Which of the following options best depicts the flow of information when a gene directs the ...

Which of the following options best depicts the flow of information when a gene directs the ...

Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component?
A) RNA  DNA  RNA  protein
B) DNA  RNA  protein
C) protein  RNA  DNA
D) DNA  tRNA  mRNA  protein

sophiegiu   36   1 Reply

chenandrew1219

Considering only the steps that take place during translation, which of the following is not needed ...

Considering only the steps that take place during translation, which of the following is not needed ...

Considering only the steps that take place during translation, which of the following is not needed in order for translation to occur?
A) DNA template
B) ribosomes
C) tRNA
D) sources of energy, including ATP

bgoodwi1   36   1 Reply

Jordieey

Which of the following statements about plant viruses is false?

Which of the following statements about plant viruses is false?

Which of the following statements about plant viruses is false?
A) Once in a plant, a virus can spread from cell to cell through plasmodesmata.
B) The genetic material in most plant viruses is RNA.
C) Preventing infections and breeding resistant plan

CaptainTrout   36   1 Reply

Morg1977

Imagine that a pharmaceutical company was successful at producing a drug based on the CCR5 gene ...

Imagine that a pharmaceutical company was successful at producing a drug based on the CCR5 gene ...

Imagine that a pharmaceutical company was successful at producing a drug based on the CCR5 gene product that is effective at preventing the contraction of AIDS. However, shortly after the drug has been in use, patients and doctors report that the dru

helpmepls   36   1 Reply

hungwang

________ are a major source of restriction enzymes.

________ are a major source of restriction enzymes.

________ are a major source of restriction enzymes.
A) Plant cells
B) Human cells
C) Archaea cells
D) Bacterial cells

Fattbatts   36   1 Reply

squirrelpie

A population of butterflies has an allele B for big spots on the wings and b for small spots on the ...

A population of butterflies has an allele B for big spots on the wings and b for small spots on the ...

A population of butterflies has an allele B for big spots on the wings and b for small spots on the wings. The table below provides data about this population.

GenotypeBBBbbb
Number of butterflies300400300
Genotype frequency0.30.40.3

Regarding thes

yaciel143@yahoo   36   1 Reply

a_sabu2

Which of the following environments is thought to have promoted the dehydration synthesis of ...

Which of the following environments is thought to have promoted the dehydration synthesis of ...

Which of the following environments is thought to have promoted the dehydration synthesis of polypeptides and other macromolecules from smaller organic monomers on a prebiotic Earth?
A) freshwater swamps and marshes
B) deep-sea hydrothermal vents
C)

jbrisell   36   1 Reply

raybone-34

The earliest known land plants date to the

The earliest known land plants date to the

The earliest known land plants date to the
A) Precambrian.
B) Ordovician (early Paleozoic era).
C) Carboniferous (late Paleozoic era).
D) Jurassic (Mesozoic era).

BladeLotus   36   1 Reply

nmstarf4