Question 1

Which of the following results from cleavage?

Accepted Answer

A) formation of the nervous system 
B) formation of the notochord 
C) segmentation 
D) formation of more cells 
A) formation of the nervous system 
B) formation of the notochord 
C) segmentation 
D) formation of more cells

Question 2

Another term for gestation is

Accepted Answer

A) development. 
B) pregnancy. 
C) fertilization. 
D) conception. 
A) development. 
B) pregnancy. 
C) fertilization. 
D) conception.

Question 3

Which of the following options correctly represents the sequence in which most animals develop?

Accepted Answer

A) zygote,cleavage,blastula,gastrula,organ formation 
B) zygote,cleavage,gastrula,blastula,organ formation 
C) cleavage,zygote,gastrula,blastula,organ formation 
D) zygote,cleavage,organ formation,blastula,gastrula 
A) zygote,cleavage,blastula,gastrula,organ formation 
B) zygote,cleavage,gastrula,blastula,organ formation 
C) cleavage,zygote,gastrula,blastula,organ formation 
D) zygote,cleavage,organ formation,blastula,gastrula

Question 4

Which of the following describes apoptosis?

Accepted Answer

A) phagocytosis 
B) gastrulation 
C) neural tube formation 
D) programmed cell death 
A) phagocytosis 
B) gastrulation 
C) neural tube formation 
D) programmed cell death

Question 5

Which of the following hormones stimulates the growth of an ovarian follicle?

Accepted Answer

A) LH 
B) progesterone 
C) FSH 
D) estrogen 
A) LH 
B) progesterone 
C) FSH 
D) estrogen

Question 6

Fission is an asexual process

Accepted Answer

A) that allows regeneration of lost body parts. 
B) that occurs in individuals that live in isolated areas. 
C) in which a parent fragments into several pieces. 
D) in which a parent separates into two individuals of approximately equal size. 
A) that allows regeneration of lost body parts. 
B) that occurs in individuals that live in isolated areas. 
C) in which a parent fragments into several pieces. 
D) in which a parent separates into two individuals of approximately equal size.

Question 7

Fertilization in the female reproductive tract typically occurs in the

Accepted Answer

A) lower part of the oviduct. 
B) uterus. 
C) ovary. 
D) upper part of the oviduct. 
A) lower part of the oviduct. 
B) uterus. 
C) ovary. 
D) upper part of the oviduct.

Question 8

Which of the following statements regarding spermatogenesis and oogenesis is true?

Accepted Answer

A) Spermatogenesis begins at birth. 
B) Meiosis in oogenesis produces one mature egg from one primary oocyte. 
C) Meiosis in spermatogenesis produces two cells from one primary spermatocyte. 
D) Oogenesis begins at puberty. 
A) Spermatogenesis begins at birth. 
B) Meiosis in oogenesis produces one mature egg from one primary oocyte. 
C) Meiosis in spermatogenesis produces two cells from one primary spermatocyte. 
D) Oogenesis begins at puberty.

Question 9

Which part of this figuring depicting a gastrula is the mesoderm?

Accepted Answer

A) part A 
B) part B 
C) part C 
D) part D 
A) part A 
B) part B 
C) part C 
D) part D

Question 10

Between 1980 and 2006,the rate of multiple births in the United States more than doubled,primarily as a result of

Accepted Answer

A) increased use of fertility drugs. 
B) increased exposure to new sources of radiation. 
C) better physical condition of potential mothers. 
D) better nutrition available for potential mothers. 
A) increased use of fertility drugs. 
B) increased exposure to new sources of radiation. 
C) better physical condition of potential mothers. 
D) better nutrition available for potential mothers.

Question 11

A decrease in is followed by the gradual degradation of the corpus luteum.

Accepted Answer

A) FSH 
B) LH 
C) progesterone 
D) estrogen 
A) FSH 
B) LH 
C) progesterone 
D) estrogen

Question 12

What would happen if the chorion failed to secrete human chorionic gonadotropin?

Accepted Answer

A) The embryo would be aborted. 
B) The maternal elements of the placenta would fail to develop. 
C) The fetal elements of the placenta would fail to develop. 
D) Neural tube formation would not occur,and the embryo would have no central nervous system. 
A) The embryo would be aborted. 
B) The maternal elements of the placenta would fail to develop. 
C) The fetal elements of the placenta would fail to develop. 
D) Neural tube formation would not occur,and the embryo would have no central nervous system.

Question 13

The human embryo's first blood cells arise in the

Accepted Answer

A) developing bone marrow. 
B) developing liver. 
C) allantois. 
D) yolk sac. 
A) developing bone marrow. 
B) developing liver. 
C) allantois. 
D) yolk sac.

Question 14

When a chemical signal from a group of embryonic cells causes a different,nearby group of cells to embark on a particular developmental course (say,differentiating into a leg),the interaction between the two groups of cells is called

Accepted Answer

A) coordinated differentiation. 
B) potentiation. 
C) codifferentiation. 
D) induction. 
A) coordinated differentiation. 
B) potentiation. 
C) codifferentiation. 
D) induction.

Question 15

Human testes are positioned in an external sac rather than in the abdominal cavity

Accepted Answer

A) so the testes can be kept cooler than the body's interior. 
B) to shorten the distance that semen must travel during ejaculation. 
C) to shorten the distance that sperm must swim during insemination. 
D) so the testes can enlarge during sexual maturation. 
A) so the testes can be kept cooler than the body's interior. 
B) to shorten the distance that semen must travel during ejaculation. 
C) to shorten the distance that sperm must swim during insemination. 
D) so the testes can enlarge during sexual maturation.

Question 16

Which of the following agents can cause an infection that can ultimately develop into pelvic inflammatory disease in women?

Accepted Answer

A) Treponema pallidum 
B) Chlamydia trachomatis 
C) papilloma virus 
D) Candida albicans 
A) Treponema pallidum 
B) Chlamydia trachomatis 
C) papilloma virus 
D) Candida albicans

Exam 27: Reproduction and Embryonic Development

Which of the following results from cleavage?

Another term for gestation is

Which of the following options correctly represents the sequence in which most animals develop?

Which of the following describes apoptosis?

Which of the following hormones stimulates the growth of an ovarian follicle?

Fission is an asexual process

Fertilization in the female reproductive tract typically occurs in the

Which of the following statements regarding spermatogenesis and oogenesis is true?

Which part of this figuring depicting a gastrula is the mesoderm?

Between 1980 and 2006,the rate of multiple births in the United States more than doubled,primarily as a result of

A decrease in is followed by the gradual degradation of the corpus luteum.

What would happen if the chorion failed to secrete human chorionic gonadotropin?

The human embryo's first blood cells arise in the

When a chemical signal from a group of embryonic cells causes a different,nearby group of cells to embark on a particular developmental course (say,differentiating into a leg),the interaction between the two groups of cells is called

Human testes are positioned in an external sac rather than in the abdominal cavity

Which of the following agents can cause an infection that can ultimately develop into pelvic inflammatory disease in women?

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

Dna Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

The Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Nervous Systems

The Senses

How Animals Move

Plant Structure,growth,and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

The Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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