Question 1

Which feature is not associated with aging of the musculoskeletal system?

Accepted Answer

A)  A decrease in the muscle mass starting in the 20s or 30s for men.
B)  A two inch decrease in height by the time we reach age 80.
C)  A reduction in the size and number of muscle fibers.
D)  Compression of the vertebrae.
E)  All of these are features associated with aging.F) C) and E)
G) B) and D)

Question 2

The amnion surrounds the embryo and bathes it in a protective fluid.

Accepted Answer

A) True 
 B)False

Question 3

If the acrosome cap of the sperm were to fall off what would happen during fertilization?

Accepted Answer

A)  The corona radiata would not be weakened by the enzymes found in the acrosome cap of the sperm.
B)  The corona radiata would not be weakened by the fatty acids found in the acrosome cap of the sperm.
C)  The zona pellucida would depolarize at a faster rate than if the acrosome cap was present.
D)  None of the above would occur.
E)  All of the above would occur.F) A) and B)
G) A) and C)

Question 4

Which health issue is related to aging issues associated with the immune system?

Accepted Answer

A)  An elderly patient does not respond well to vaccinations.
B)  The thymus increases in size due to an accumulation of adipose tissue.
C)  The number of natural killer T cells declines.
D)  All of the choices are correct.
E)  None of the choices are correct.F) A) and B)
G) A) and C)

Question 5

The _____ develops into the fetal portion of the placenta.

Accepted Answer

A)  amnion
B)  archenteron
C)  chorion
D)  yolk sac
E)  allantoisF) A) and E)
G) A) and C)

Question 6

What body systems may be impacted if a mother drinks alcohol during pregnancy and causes developmental problems to the endoderm?

Accepted Answer

A)  The epithelial lining of the digestive and respiratory systems may not be as functional as they should.
B)  The epithelial lining of the digestive and reproductive systems may not be as functional as they should.
C)  The epidermis and the epithelial lining of the oral cavity may not be as functional as they should.
D)  The outer layers of the digestive and respiratory systems may not be as functional as they should.E) All of the above
F) A) and B)

Question 7

The process in which neighboring cells influence the development of each other,either by direct contact or by production of chemical signals,is

Accepted Answer

A)  neurulation.
B)  gastrulation.
C)  induction.
D)  maternal determinants.
E)  homeotic pattern formation.F) C) and D)
G) All of the above

Question 8

The formation of the lens of the vertebrate eye from a skin layer in contact with an outgrowth of the embryonic brain is an example of

Accepted Answer

A)  cellular aggregation.
B)  induction.
C)  morphogenesis.
D)  gastrulation.
E)  neurulation.F) B) and E)
G) A) and E)

Question 9

The trophoblast will provide nourishment for the embryo and give rise to the placenta.

Accepted Answer

A) True 
 B)False

Exam 42: Animal Development

If the acrosome cap of the sperm were to fall off what would happen during fertilization?

Correct Answer
verified

The _____ develops into the fetal portion of the placenta.

Correct Answer
verified

The process in which neighboring cells influence the development of each other,either by direct contact or by production of chemical signals,is

Correct Answer
verified

The amnion surrounds the embryo and bathes it in a protective fluid.

Correct Answer
verified

Which health issue is related to aging issues associated with the immune system?

Correct Answer
verified

What body systems may be impacted if a mother drinks alcohol during pregnancy and causes developmental problems to the endoderm?

Correct Answer
verified

Which feature is not associated with aging of the musculoskeletal system?

Correct Answer
verified

The formation of the lens of the vertebrate eye from a skin layer in contact with an outgrowth of the embryonic brain is an example of

Correct Answer
verified

The trophoblast will provide nourishment for the embryo and give rise to the placenta.

Correct Answer
verified

Exam 42: Animal Development

If the acrosome cap of the sperm were to fall off what would happen during fertilization?

Correct AnswerverifiedShow Answer

The _____ develops into the fetal portion of the placenta.

Correct AnswerverifiedShow Answer

The process in which neighboring cells influence the development of each other,either by direct contact or by production of chemical signals,is

Correct AnswerverifiedShow Answer

The amnion surrounds the embryo and bathes it in a protective fluid.

Correct AnswerverifiedShow Answer

Which health issue is related to aging issues associated with the immune system?

Correct AnswerverifiedShow Answer

What body systems may be impacted if a mother drinks alcohol during pregnancy and causes developmental problems to the endoderm?

Correct AnswerverifiedShow Answer

Which feature is not associated with aging of the musculoskeletal system?

Correct AnswerverifiedShow Answer

The formation of the lens of the vertebrate eye from a skin layer in contact with an outgrowth of the embryonic brain is an example of

Correct AnswerverifiedShow Answer

The trophoblast will provide nourishment for the embryo and give rise to the placenta.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified