General Biology

Discuss whether a crime scene investigation (CSI) team can determine the location of an assailant to

Discuss whether a crime scene investigation (CSI) team can determine the location of an assailant to

Discuss whether a crime scene investigation (CSI) team can determine the location of an assailant to the victim based on entrance wound characteristics?

coolgirl259   87   1 Reply

bio_man

Explain why organisms formerly known as blue-green algae are now called cyanobacteria?

Explain why organisms formerly known as blue-green algae are now called cyanobacteria?

Assignment questions:
Explain why organisms formerly known as blue-green algae are now called cyanobacteria?

How is Agrobacterium used in recombinant DNA technology?

coolgyal25   908   1 Reply

biolove

Changes in DNA structure during the cell cycle As the chromosomes of a parent ce

Changes in DNA structure during the cell cycle As the chromosomes of a parent ce

Changes in DNA structure during the cell cycle
As the chromosomes of a parent cell are duplicated and distributed to the two daughter cells during cell division, the structure of the chromosomes changes.

Coolin2   2123   2 Replies

azvballchic

Kyla is studying the oxygen use by the livers of seals. She detected a 4 kPa

Kyla is studying the oxygen use by the livers of seals. She detected a 4 kPa

help

coolstuff   1724   2 Replies

coolstuff

Adalia was studying the responses of animals to extreme heat and cold. She notic

Adalia was studying the responses of animals to extreme heat and cold. She notic

XXXXXX

coolstuff   702   1 Reply

duddy

What is the difference between descriptive and analytical epidemiology?

What is the difference between descriptive and analytical epidemiology?

Hi,

I am having trouble understanding the difference between descriptive and analytical epidemiology. From what I can gather, descriptive deals with studying facts after the disease has occurred, while analytical looks at risk factors of t

CooperS   845   1 Reply

jander96

I need help with my coursework URGENT

I need help with my coursework URGENT

Hey,
I'm tried to start doing my biology coursework and my topic is Lung Cancer.
But now, I'm super stuck and don't know what to right about. I can't seem to find any facts.

My chosen solution to lung cancer w

Cordero31   2032   3 Replies

Velma Dennis

Implications of chemotherapy in lung cancer? URGENT

Implications of chemotherapy in lung cancer? URGENT

What is the implications of chemotherapy in lung cancer?
and can anyone find statistics or data of chemotherapy on lung cancer? like graphs of success rate?

Cordero31   601   7 Replies

padre

AS biology coursework

AS biology coursework

Hey guys!
I was wondering if any of you can help me with my AS biology coursework? I have asked my teacher but she said she can only help me once I've submitted my first draft but I'm having trouble finding a topic.
What my biol

Cordero31   558   N/A

Cordero31

How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ground.

How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ground.

I need the final velocity. The answer choices are
.70,   .85,  .80,  .89. How do you find the final velocity?

Coretta   149   1 Reply

bio_man

In horses, overriding all other genes for color is the dominant gene:

In horses, overriding all other genes for color is the dominant gene:

In horses, overriding all other genes for color is the dominant gene:
 
  a. A c. D
  b. B d. E

Question 2

Which of the following is proper attire for Western riding?
 
  a

cosorio97   27   3 Replies

Jeremythebest3

Which of the following are metabolic diseases that may affect dogs and cats?

Which of the following are metabolic diseases that may affect dogs and cats?

Which of the following are metabolic diseases that may affect dogs and cats?
 
  A. Diabetes mellitus
  B. Hypothyroidism
  C. Addison's disease
  D. All of the above
  E. A and B above

Question 2[

cosorio97   50   2 Replies

cosorio97

Central Nervous System Questions

Central Nervous System Questions

Note: I am from Greece and I had to translate those questions below. It's not perfectly translated, so if you don't understand something, please ask me.


Is this sentence True or False?

Τhe expression of fear, in

Coto   1569   N/A

Coto

What is the foundation of most control systems?

What is the foundation of most control systems?

What is the foundation of most control systems?
 
  a. Strategic plans
  b. Tactical plans
  c. Budgets
  d. Mission statement
  e. Functional plans

Question 2

The func

courseherod   56   2 Replies

courseherod

Some insurance companies would not insure landscapers who permit their employees with serious ...

Some insurance companies would not insure landscapers who permit their employees with serious ...

Some insurance companies would not insure landscapers who permit their employees with serious traffic violations to operate vehicles.
 
  Indicate whether the statement is true or false

Question 2

A

courseherod   37   1 Reply

snowflake1812

What do the a and b subzones within a hardiness zone represent? What will be an ideal ...

What do the a and b subzones within a hardiness zone represent? What will be an ideal ...

What do the a and b subzones within a hardiness zone represent?
 
  What will be an ideal response?

Question 2

The soil layer most seeds germinate in is the _____ horizon.
 
  a. A c. R

courseherod   20   3 Replies

Kaiyi1119

In 1985, the _____ was established to pay farmers to set aside farmland.

In 1985, the _____ was established to pay farmers to set aside farmland.

In 1985, the _____ was established to pay farmers to set aside farmland.
 
  a. Pollution Control
  b. Farm Safe
  c. Crop Reserve Program
  d. Conservation Reserve Program

Question 2
[br

courseherod   42   1 Reply

amnaaa

One undeniable problem facing our society is that of solid waste disposal. (True or false?)

One undeniable problem facing our society is that of solid waste disposal. (True or false?)

One undeniable problem facing our society is that of solid waste disposal.
 
  Indicate whether the statement is true or false

Question 2

Moss and algae are pests in turf that has been neglected.

courseherod   33   2 Replies

courseherod

What percentage of the earth is covered by water? What will be an ideal ...

What percentage of the earth is covered by water? What will be an ideal ...

What percentage of the earth is covered by water?
 
  What will be an ideal response?

Question 2

What is the science that involves the study of the composition and physical aspect of the earth to

courseherod   42   2 Replies

courseherod

Dense coastal fog is characteristic of the temperate deciduous forest biome. (True or false?)

Dense coastal fog is characteristic of the temperate deciduous forest biome. (True or false?)

Dense coastal fog is characteristic of the temperate deciduous forest biome. Indicate whether the statement is true or false.

Question 2

The boreal forest biome does not contain deciduous trees.

courtney4264   71   3 Replies

newstudent

Approximately what proportion of the radiant energy entering an ecosystem is used in photosynthesis? ...

Approximately what proportion of the radiant energy entering an ecosystem is used in photosynthesis? ...

Approximately what proportion of the radiant energy entering an ecosystem is used in photosynthesis?
  a. 1
  b. 4
  c. 10
  d. 50
  e. 75

Question 2

Describe the ong

courtney4264   45   2 Replies

courtney4264

One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle ...

One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle ...

One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle fibers:a.
   have several nuclei, while skeletal muscle fibers do not.
  b. are not striated, while skeletal muscle fibers are.
  c. are und

courtney4264   79   3 Replies

chanceh91

Auditory receptors are located in the:a. cochlea. b. semicircular canals. c. utricle. d. ...

Auditory receptors are located in the:a. cochlea. b. semicircular canals. c. utricle. d. ...

Auditory receptors are located in the:a.
   cochlea.
  b. semicircular canals.
  c. utricle.
  d. ampullae.
  e. otoliths

Question 2

Sound waves travel within the ear

courtney4264   62   2 Replies

courtney4264

An electrocardiogram (ECG, EKG) is a measure of the heart's:

An electrocardiogram (ECG, EKG) is a measure of the heart's:

An electrocardiogram (ECG, EKG) is a measure of the heart's:
  a. electrical system.
  b. blood flow to the body.
  c. contraction rate.
  d. blood flow to heart muscle.
  e. pumping ability.

[fa]chec

courtney4264   31   3 Replies

bible327

Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes.

Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes.

Retroviruses, such as RNA tumor viruses, use __________ to make DNA from their RNA genomes.
  a. DNA polymerase
  b. DNA-dependent RNA polymerase
  c. RNA polymerase
  d. primase
  e. reverse transcriptase

[color=#F

courtney4264   36   2 Replies

courtney4264

Refer to the accompanying figure. During the development of secondary vascular tissues, which of the ...

Refer to the accompanying figure. During the development of secondary vascular tissues, which of the ...

Refer to the accompanying figure. During the development of secondary vascular tissues, which of the following
  structures is replaced by periderm?
  a. 1
  b. 3
  c. 5
  d. 6
  e. 7

[fa]check[/

courtney4264   29   2 Replies

courtney4264

Peptidoglycan consists of: (Multiple Choice)

Peptidoglycan consists of: (Multiple Choice)

Peptidoglycan consists of:
  a. lipids only
  b. proteins only
  c. polysaccharides
  d. lipids crosslinked with sugars
  e. sugars crosslinked with proteins

Question 2

G

courtney4264   66   3 Replies

Kennykeen15

A ____ is required to transfer genes from one organism to another.

A ____ is required to transfer genes from one organism to another.

A ____ is required to transfer genes from one organism to another.
  a. vector
  b. reverse transcriptase
  c. transport molecule
  d. genetic probe
  e. PCR device

Question 2[/

courtney4264   31   1 Reply

slayer909

A salt is a compound in which the hydrogen ion of ____ is replaced by some other cation.

A salt is a compound in which the hydrogen ion of ____ is replaced by some other cation.

A salt is a compound in which the hydrogen ion of ____ is replaced by some other cation.
  a. water
  b. a base
  c. an acid
  d. an anion
  e. a hydroxide ion

Question 2[br

courtney4264   60   3 Replies

mas0375

When is a cell in metaphase?

When is a cell in metaphase?

When is a cell in metaphase?
  a. The chromosomes are visible as threadlike structures.
  b. The nuclear envelope is clearly visible.
  c. The chromosomes are aligned at the midplane of the cell.
  d. The chromosome are separated

courtney4264   41   2 Replies

courtney4264

The study of behavior in natural environments from an evolutionary perspective is called:a. ...

The study of behavior in natural environments from an evolutionary perspective is called:a. ...

The study of behavior in natural environments from an evolutionary perspective is called:a.
   ethology.
  b. animal behavior.
  c. behavioral ecology.
  d. behavioral ethology.
  e. direct fitness.

[

courtney4264   39   3 Replies

cg5232

The main shaft of a long bone is termed its epiphysis. ____________________ Indicate whether the ...

The main shaft of a long bone is termed its epiphysis. ____________________ Indicate whether the ...

The main shaft of a long bone is termed its epiphysis.
  ____________________ Indicate whether the statement is true or false.

Question 2

The connective tissue membrane that covers the b

courtney4264   35   1 Reply

sosobon

Discuss the biological effects of the following types of drugs: hallucinogens, stimulants, and ...

Discuss the biological effects of the following types of drugs: hallucinogens, stimulants, and ...

Discuss the biological effects of the following types of drugs: hallucinogens, stimulants, and antianxiety
  drugs. What will be an ideal response?

Question 2

Compare and contrast REM an

courtney4264   46   3 Replies

hk7

He limbic system affects all of the following except:a. sexual behavior. b. motivation. c. ...

He limbic system affects all of the following except:a. sexual behavior. b. motivation. c. ...

he limbic system affects all of the following except:a.
   sexual behavior.
  b. motivation.
  c. evaluating rewards.
  d. the sleep-wake cycle.
  e. fighting behavior.

Question 2[/

courtney4264   49   3 Replies

Jfiscella88

The cephalic end of an animal is toward its head. ____________________ Indicate whether the ...

The cephalic end of an animal is toward its head. ____________________ Indicate whether the ...

The cephalic end of an animal is toward its head.
  ____________________ Indicate whether the statement is true or false.

Question 2

The body of a bilaterally symmetrical animal can divi

courtney4264   30   2 Replies

courtney4264

Refer to Figure 4-4. If you treated this organelle to remove ONLY the chlorophyll, which label ...

Refer to Figure 4-4. If you treated this organelle to remove ONLY the chlorophyll, which label ...

courtney4264   28   2 Replies

courtney4264

Studies of CNVs (copy number variations) reveal that schizophrenia and autism may be ...

Studies of CNVs (copy number variations) reveal that schizophrenia and autism may be ...

Studies of CNVs (copy number variations) reveal that schizophrenia and autism may be
  ______________.
  A. the same disorder D. linked to bipolar disorder
  B. opposite faces of the same disorder E. X-linked dominant disorders
 

courtney4264   40   3 Replies

mt

A genetic library contains all the DNA fragments of

A genetic library contains all the DNA fragments of

A genetic library contains all the DNA fragments of
  A. the entire genome of a species.
  B. a specific chromosome of a species.
  C. all the genes expressed in a certain cell type.
  D. any of these.
  E. none of these.

courtney4264   52   3 Replies

hbirk8

If a man and his wife are both homozygous for a disease-causing recessive gene, then ...

If a man and his wife are both homozygous for a disease-causing recessive gene, then ...

If a man and his wife are both homozygous for a disease-causing recessive gene, then
  ____________________ of their children will be affected. Fill in the blank(s) with the appropriate word(s).
 
 

[fa]check[/

courtney4264   40   2 Replies

courtney4264

One of Mendel's major contributions to the study of heredity was the application of ...

One of Mendel's major contributions to the study of heredity was the application of ...

One of Mendel's major contributions to the study of heredity was the application of
  ____________________ in analyzing results of crosses. Fill in the blank(s) with the appropriate word(s).
 
 

[fa]check[/fa

courtney4264   40   3 Replies

Ello_kara