Question 1

What occurs during organogenesis?

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Question 2

How does direct development of an embryo differ from indirect development?

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Question 3

A human embryo has webbed fingers. Why are human babies not usually born with webbed fingers?

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Question 4

The hormone__________ promotes both mammary gland development and milk production.

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Question 5

How do undifferentiated cells ʺknowʺ what to become?

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Question 6

What is a gastrula?

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Question 7

-The function of structure 1 is to

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Structure 1 refers to the placenta, which is responsible for exchanging nutrients and wastes between the mother and the embryo.

Question 8

-The structure labeled 2 is the

Accepted Answer

The structure labeled 2 is the amnion, which is a membrane that encloses the embryo in a fluid-filled cavity. This provides a protective environment for the developing embryo.

Question 9

Adult stem cells derived from fat cells have been used to develop muscle and nerve cells in the lab. How is this possible?

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Question 10

An embryo was exposed to a chemical early in its development. At birth, there is chromosomal damage to the skin linked to the chemical exposure. What other organ system should be examined for the same type of damage?

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Question 11

German measles is a very mild infection, so why is vaccination against German measles required by most colleges?

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Question 12

Why do organisms that have indirect development produce hundreds of offspring, whereas those with direct development produce relatively few offspring?

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Question 13

If your roommate smokes and she gets pregnant, what dangers would you warn her about?

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Question 14

-Blood cells form from structure

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-Blood cells form from structure
...

Question 15

An embryo was exposed to a chemical early in its development. At birth, there is chromosomal damage to the circulatory system linked to the chemical exposure. What other organ systems should be examined for the same type of damage?

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Question 16

How is blood flow in the placenta maintained so that there is maximum opportunity for the exchange of materials while still keeping the blood of the mother and the baby separate?

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Question 17

In what ways are the juveniles of direct-development species like their parents, and in what way are they different?

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Question 18

-The fluid the embryo floats in is produced by structure

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-The fluid the embryo floats in is...

Question 19

A recent series of TV commercials promoted the idea that a woman who wants to have a healthy baby must begin to eat well and avoid some medications and alcohol before she knows she is pregnant. Why?

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Question 20

Why should a woman who plans to become pregnant notify her health care provider of any medications she is taking?

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Quiz 43: Animal Development