Question 1

The tissue type that provides contractions that power movement is

Accepted Answer

A)   epithelial.
B)   connective.
C)   muscle.
D)   nervous.
E)   All answers are correct.F) C) and E)
G) None of the above

Question 2

Feathers,whether on an ancient dinosaur or a modern bird,can help in thermoregulation by holding onto body heat.

Accepted Answer

A) True 
 B)False

Question 3

You are working in a diagnostic lab,and you receive a skin biopsy sample.The sample shows several groups of cancerous cells in the epithelium,so you say in your report that you found several

Accepted Answer

A)   carcinomas.
B)   leukemias.
C)   sarcomas.
D)   hybridomas.
E)   lymphomas.F) A) and E)
G) A) and D)

Question 4

The cross-sectional area of the nasal cavity can be an important indicator of whether an animal is an endotherm or an ectotherm.

Accepted Answer

A) True 
 B)False

Question 5

Most burn victims who have substantial damage to their skin are prescribed powerful antibiotics because the intact skin is the first defense against bacterial infections.

Accepted Answer

A) True 
 B)False

Question 6

Our cells use vitamin C to make collagen,and people on a diet deficient in vitamin C have increased risk of small blood vessels rupturing.Which is the best explanation for this observation?

Accepted Answer

A)   Collagen is the connective tissue in blood.
B)   Collagen weakens the cells lining blood vessels.
C)   Collagen is in the connective tissue surrounding blood vessels.
D)   Collagen causes blood vessels to become stiff and more likely to break.
E)   Collagen inhibits blood clotting.F) A) and D)
G) A) and E)

Question 7

Blood flow is increased by vasodilation,or widening of the blood vessel.Which tissue is responsible for vasodilation?

Accepted Answer

A)   epithelial
B)   connective
C)   muscle
D)   adipose
E)   endocrineF) A) and D)
G) B) and E)

Question 8

An action that counters an existing condition is called

Accepted Answer

A)   negative feedback.
B)   a mistake.
C)   positive feedback.
D)   directional control.
E)   No answer is correct.F) All of the above
G) C) and E)

Question 9

Scleroderma is an autoimmune disease in which repeated bouts of inflammation result in collagen deposits in the skin.Which would be a symptom of scleroderma?

Accepted Answer

A)   increased blood flow to the skin
B)   increased flexibility in the skin
C)   change in the skin cell type from squamous to columnar
D)   change in the skin cell type from columnar to squamous
E)   less flexibility and sensitivity to temperature in the skinF) All of the above
G) A) and D)

Question 10

The type of epithelial tissue that forms multiple layers of flattened cells is

Accepted Answer

A)   stratified squamous.
B)   simple squamous.
C)   simple cuboidal.
D)   simple columnar.
E)   stratified columnar.F) D) and E)
G) B) and D)

Question 11

The liver produces 90% of the cholesterol in your body.Most cholesterol is transported in the blood as low density lipoprotein (LDL) .When the levels of blood LDL increase,the enzyme in the liver that makes cholesterol is inhibited.This is an example of ________ feedback.

Accepted Answer

A)   positive
B)   endocrine
C)   nervous
D)   negative
E)   hormonalF) C) and D)
G) C) and E)

Question 12

Muscle tissue that is controlled involuntarily and has no striations is

Accepted Answer

A)   smooth.
B)   cardiac.
C)   skeletal.
D)   cartilage.
E)   squamous.F) B) and D)
G) B) and C)

Question 13

Which tissue within skin is responsible for producing sweat?

Accepted Answer

A)   epithelial
B)   connective
C)   muscle
D)   nervous
E)   endocrineF) None of the above
G) A) and B)

Question 14

You are asked to research what the eye is.You read that it contains nerves,muscles,and blood cells.Therefore,you decide that it is a(n)

Accepted Answer

A)   organ.
B)   tumor.
C)   organ system.
D)   tissue.E) C) and D)
F) A) and C)

Question 15

The systems that coordinate communication are

Accepted Answer

A)   skeletal and muscular.
B)   circulatory and respiratory.
C)   nervous and endocrine.
D)   digestive and circulatory.
E)   urinary and immune.F) A) and B)
G) B) and C)

Question 16

When a blood clot begins to form,the enzyme thrombin is formed.Thrombin then activates the enzymes that produce more thrombin.This is an example of ________ feedback.

Accepted Answer

A)   negative
B)   positive
C)   endocrine
D)   nervous
E)   hormonalF) A) and D)
G) A) and C)

Question 17

If you observe that the hypothalamus of a newly discovered animal stimulates blood vessels in the skin to relax in response to excessive body temperature,you know that it is an ectotherm.

Accepted Answer

A) True 
 B)False

Question 18

The body's first line of defense against disease-causing microorganisms is the

Accepted Answer

A)   white blood cells.
B)   process of phagocytosis.
C)   production of antibodies.
D)   production of T lymphocytes.
E)   intact skin.F) All of the above
G) A) and B)

Question 19

The type of epithelial tissue that forms a single layer of elongated cells is

Accepted Answer

A)   stratified cuboidal.
B)   simple squamous.
C)   stratified squamous.
D)   stratified columnar.
E)   simple columnar.F) A) and B)
G) All of the above

Question 20

The tissue that makes up the spinal cord and brain consists of

Accepted Answer

A)   neurons only.
B)   platelets and neuroglia.
C)   platelets only.
D)   neurons and platelets.
E)   neurons and neuroglia.F) C) and E)
G) A) and D)

Exam 23: Animal Tissues and Organ Systems

Feathers,whether on an ancient dinosaur or a modern bird,can help in thermoregulation by holding onto body heat.

Correct AnswerverifiedShow Answer

The body's first line of defense against disease-causing microorganisms is the

Correct AnswerverifiedShow Answer

Our cells use vitamin C to make collagen,and people on a diet deficient in vitamin C have increased risk of small blood vessels rupturing.Which is the best explanation for this observation?

Correct AnswerverifiedShow Answer

You are working in a diagnostic lab,and you receive a skin biopsy sample.The sample shows several groups of cancerous cells in the epithelium,so you say in your report that you found several

Correct AnswerverifiedShow Answer

Most burn victims who have substantial damage to their skin are prescribed powerful antibiotics because the intact skin is the first defense against bacterial infections.

Correct AnswerverifiedShow Answer

Muscle tissue that is controlled involuntarily and has no striations is

Correct AnswerverifiedShow Answer

You are asked to research what the eye is.You read that it contains nerves,muscles,and blood cells.Therefore,you decide that it is a(n)

Correct AnswerverifiedShow Answer

The systems that coordinate communication are

Correct AnswerverifiedShow Answer

Scleroderma is an autoimmune disease in which repeated bouts of inflammation result in collagen deposits in the skin.Which would be a symptom of scleroderma?

Correct AnswerverifiedShow Answer

The type of epithelial tissue that forms a single layer of elongated cells is

Correct AnswerverifiedShow Answer

The tissue that makes up the spinal cord and brain consists of

Correct AnswerverifiedShow Answer

When a blood clot begins to form,the enzyme thrombin is formed.Thrombin then activates the enzymes that produce more thrombin.This is an example of ________ feedback.

Correct AnswerverifiedShow Answer

The liver produces 90% of the cholesterol in your body.Most cholesterol is transported in the blood as low density lipoprotein (LDL) .When the levels of blood LDL increase,the enzyme in the liver that makes cholesterol is inhibited.This is an example of ________ feedback.

Correct AnswerverifiedShow Answer

An action that counters an existing condition is called

Correct AnswerverifiedShow Answer

Which tissue within skin is responsible for producing sweat?

Correct AnswerverifiedShow Answer

Blood flow is increased by vasodilation,or widening of the blood vessel.Which tissue is responsible for vasodilation?

Correct AnswerverifiedShow Answer

The cross-sectional area of the nasal cavity can be an important indicator of whether an animal is an endotherm or an ectotherm.

Correct AnswerverifiedShow Answer

The tissue type that provides contractions that power movement is

Correct AnswerverifiedShow Answer

If you observe that the hypothalamus of a newly discovered animal stimulates blood vessels in the skin to relax in response to excessive body temperature,you know that it is an ectotherm.

Correct AnswerverifiedShow Answer

The type of epithelial tissue that forms multiple layers of flattened cells is

Correct AnswerverifiedShow Answer

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