Subject SAT (College Board) Biology: Questions 62 - 65 of 824

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Question number: 62

» Structure and Function

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MCQ▾

Question

Respiratory center is located in the ________.

Choices

Choice (5)Response

a.

Cerebellum

b.

Pneumotaxic centre

c.

Alveoli

d.

Medulla oblongata

e.

Question does not provide sufficient data or is vague

Question number: 63

» Structure and Function

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MCQ▾

Question

Smooth muscles are found in

Choices

Choice (5)Response

a.

Walls of urinary bladder

b.

Walls of blood vessels

c.

Walls of alimentary canal

d.

All a. , b. and c. are correct

e.

None of the above

Question number: 64

» Structure and Function

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MCQ▾

Question

Which of the following statements regarding the testes are correct?

  1. Leydig cells secrete testosterone.

  2. Sertoli cells respond to testosterone by synthesizing androgen binding protein.

  3. Testosterone inhibits the secretion of LH by negative feedback regulation.

  4. Sertoli cells prevent free diffusion of water-soluble substances between the seminiferous tubules and the blood

  5. Sertoli cells line the seminiferous tubules and directly give rise to the developing sperm.

Choices

Choice (5)Response

a.

2,3

b.

1,3, 4

c.

1,4, 5

d.

1,2, 3

e.

Question does not provide sufficient data or is vague

Question number: 65

» Behavior and Ecology

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MCQ▾

Question

The below figure demonstrates the stages of ecological succession. The given stages are NOT in order. Which of the following sequence represent the correct order?

The stages of ecological succession

The Stages of Ecological Succession

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

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