Question 1

The discovery of _ _ explains embryonic pattern formation in a wide variety of organisms.

Accepted Answer

A) programmed cell death 
B) homeotic genes 
C) induction 
D) the three- dimensional forms of animals 
A) programmed cell death 
B) homeotic genes 
C) induction 
D) the three- dimensional forms of animals

Question 2

The function of a sperm cell's acrosome is to

Accepted Answer

A) carry the sperm's nucleus. 
B) carry the fuel that powers the sperm. 
C) carry enzymes that help the sperm penetrate the egg. 
D) fuse with the jelly coat of the egg cell. 
A) carry the sperm's nucleus. 
B) carry the fuel that powers the sperm. 
C) carry enzymes that help the sperm penetrate the egg. 
D) fuse with the jelly coat of the egg cell.

Question 3

What occurs during gastrulation?

Accepted Answer

A) A hollow blastula is changed into a hollow embryo that has three tissue layers. 
B) A solid blastula is changed into a hollow embryo that has four tissue layers. 
C) A solid embryo is changed into a hollow morula. 
D) A neural tube is created by invagination of the ectoderm. 
A) A hollow blastula is changed into a hollow embryo that has three tissue layers. 
B) A solid blastula is changed into a hollow embryo that has four tissue layers. 
C) A solid embryo is changed into a hollow morula. 
D) A neural tube is created by invagination of the ectoderm.

Question 4

Which of the following produces a thick fluid containing fructose,which is used for energy by sperm?

Accepted Answer

A) bulbourethral gland 
B) seminal vesicles 
C) epididymis 
D) prostate gland 
A) bulbourethral gland 
B) seminal vesicles 
C) epididymis 
D) prostate gland

Question 5

Which of the following statements regarding birth control is true?

Accepted Answer

A) Birth control pills work primarily by preventing fertilization and implantation. 
B) Morning- after pills taken within three days of unprotected intercourse prevent fertilization or implantation about 75% of the time. 
C) Natural family planning is generally reliable. 
D) The most widely used birth control pills contain a combination of FSH and LH. 
A) Birth control pills work primarily by preventing fertilization and implantation. 
B) Morning- after pills taken within three days of unprotected intercourse prevent fertilization or implantation about 75% of the time. 
C) Natural family planning is generally reliable. 
D) The most widely used birth control pills contain a combination of FSH and LH.

Question 6

Two important contributions that cleavage makes to development are to

Accepted Answer

A) create a multicellular embryo and establish the basic tissues of the body. 
B) establish the basic tissues of the body and define the future nervous system. 
C) establish the basic body plan and determine the location of the mouth and anus. 
D) create a multicellular embryo and partition the embryo into developmental regions. 
A) create a multicellular embryo and establish the basic tissues of the body. 
B) establish the basic tissues of the body and define the future nervous system. 
C) establish the basic body plan and determine the location of the mouth and anus. 
D) create a multicellular embryo and partition the embryo into developmental regions.

Question 7

Research indicates that respond(s)to signals that inform a cell about its position relative to other cells in the embryo.

Accepted Answer

A) nervous tissue ...hormonal 
B) organs ...radio 
C) master control genes ...chemical 
D) organelles ...chemical 
A) nervous tissue ...hormonal 
B) organs ...radio 
C) master control genes ...chemical 
D) organelles ...chemical

Question 8

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

Accepted Answer

A) Men,but not women,can produce gametes throughout their lives. 
B) During oogenesis,four cells are produced with each sharing equally the cytoplasm from the parent cell. 
C) Spermatogenesis and oogenesis rely upon mitosis to produce gametes. 
D) Spermatogenesis,but not oogenesis,is an example of gametogenesis. 
A) Men,but not women,can produce gametes throughout their lives. 
B) During oogenesis,four cells are produced with each sharing equally the cytoplasm from the parent cell. 
C) Spermatogenesis and oogenesis rely upon mitosis to produce gametes. 
D) Spermatogenesis,but not oogenesis,is an example of gametogenesis.

Question 9

Which of the following serves as an impenetrable barrier that prevents more than one sperm from fertilizing an egg?

Accepted Answer

A) the acrosome 
B) the jelly coat of the egg 
C) the vitelline layer 
D) the sperm's plasma membrane 
A) the acrosome 
B) the jelly coat of the egg 
C) the vitelline layer 
D) the sperm's plasma membrane

Question 10

Which of the following statements about the reproductive system of human females is true?

Accepted Answer

A) The corpus luteum secretes progesterone,which helps maintain the uterine lining during pregnancy. 
B) In human females,eggs develop within the uterus. 
C) The cervix is an important structure of sexual arousal. 
D) After 9 months of development,an embryo is called a fetus. 
A) The corpus luteum secretes progesterone,which helps maintain the uterine lining during pregnancy. 
B) In human females,eggs develop within the uterus. 
C) The cervix is an important structure of sexual arousal. 
D) After 9 months of development,an embryo is called a fetus.

Question 11

Which of the following structures develops from mesodermal tissue?

Accepted Answer

A) lining of the digestive tract 
B) muscles 
C) skin 
D) nervous system 
A) lining of the digestive tract 
B) muscles 
C) skin 
D) nervous system

Question 12

Which of the following statements regarding sexual reproduction is true?

Accepted Answer

A) Sexual reproduction generates greater genetic variation than asexual reproduction. 
B) Sexual reproduction creates an individual that is a genetic copy of one parent. 
C) Sexual reproduction allows animals to expand their populations faster than asexual reproduction. 
D) Populations of organisms that reproduce through sexual reproduction generally have more difficulty adapting to changing environments. 
A) Sexual reproduction generates greater genetic variation than asexual reproduction. 
B) Sexual reproduction creates an individual that is a genetic copy of one parent. 
C) Sexual reproduction allows animals to expand their populations faster than asexual reproduction. 
D) Populations of organisms that reproduce through sexual reproduction generally have more difficulty adapting to changing environments.

Question 13

The yolk sac of humans

Accepted Answer

A) absorbs nutrients from,and releases waste to,the mother's blood. 
B) secretes HCG. 
C) is evidence of human's relationships to egg- laying vertebrates. 
D) stores nutrients to support the developing embryo. 
A) absorbs nutrients from,and releases waste to,the mother's blood. 
B) secretes HCG. 
C) is evidence of human's relationships to egg- laying vertebrates. 
D) stores nutrients to support the developing embryo.

Question 14

Which part of this figure depicting the human male reproductive system is the epididymis?

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 15

The human egg is swept through the oviduct toward the uterus by

Accepted Answer

A) the beating of the egg's cilia. 
B) the beating of cilia in the oviduct. 
C) rhythmic contractions of the uterus. 
D) rhythmic contractions of the oviduct. 
A) the beating of the egg's cilia. 
B) the beating of cilia in the oviduct. 
C) rhythmic contractions of the uterus. 
D) rhythmic contractions of the oviduct.

Question 16

Sterilization,in which the sperm is surgically prevented from reaching the egg,is accomplished by

Accepted Answer

A) mifepristone. 
B) cervical capping. 
C) the rhythm method. 
D) tubal ligation or vasectomy. 
A) mifepristone. 
B) cervical capping. 
C) the rhythm method. 
D) tubal ligation or vasectomy.

Question 17

At the end of gastrulation,the ectoderm makes up the

Accepted Answer

A) lining of the embryonic digestive tract. 
B) outer layer of the gastrula. 
C) inner layer of the gastrula. 
D) embryonic nervous system. 
A) lining of the embryonic digestive tract. 
B) outer layer of the gastrula. 
C) inner layer of the gastrula. 
D) embryonic nervous system.

Question 18

Which of the following occurs during the process of labor?

Accepted Answer

A) negative feedback involving oxytocin and prostaglandins 
B) positive feedback involving estrogen and human chorionic gonadotropin 
C) negative feedback involving estrogen and human chorionic gonadotropin 
D) positive feedback involving oxytocin and prostaglandins 
A) negative feedback involving oxytocin and prostaglandins 
B) positive feedback involving estrogen and human chorionic gonadotropin 
C) negative feedback involving estrogen and human chorionic gonadotropin 
D) positive feedback involving oxytocin and prostaglandins

Question 19

Which of the following occurs during cellular migration and development into specialized tissue?

Accepted Answer

A) Similar cells glue themselves in place by secreting glycoproteins. 
B) Cells are transferred to the appropriate region of the embryo via the bloodstream. 
C) Most cells of the developing tissue undergo the process of apoptosis. 
D) Cells fuse to produce multinucleated giant cells. 
A) Similar cells glue themselves in place by secreting glycoproteins. 
B) Cells are transferred to the appropriate region of the embryo via the bloodstream. 
C) Most cells of the developing tissue undergo the process of apoptosis. 
D) Cells fuse to produce multinucleated giant cells.

Question 20

The brain and spinal cord are formed from

Accepted Answer

A) the neural tube,which forms from ectoderm 
B) the neural tube,which forms from mesoderm 
C) the notochord,which forms from endoderm 
D) the notochord,which forms from mesoderm 
A) the neural tube,which forms from ectoderm 
B) the neural tube,which forms from mesoderm 
C) the notochord,which forms from endoderm 
D) the notochord,which forms from mesoderm

Exam 27: Reproduction and Embryonic Development

The discovery of _ _ explains embryonic pattern formation in a wide variety of organisms.

The function of a sperm cell's acrosome is to

What occurs during gastrulation?

Which of the following produces a thick fluid containing fructose,which is used for energy by sperm?

Which of the following statements regarding birth control is true?

Two important contributions that cleavage makes to development are to

Research indicates that respond(s)to signals that inform a cell about its position relative to other cells in the embryo.

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

Which of the following serves as an impenetrable barrier that prevents more than one sperm from fertilizing an egg?

Which of the following statements about the reproductive system of human females is true?

Which of the following structures develops from mesodermal tissue?

Which of the following statements regarding sexual reproduction is true?

The yolk sac of humans

Which part of this figure depicting the human male reproductive system is the epididymis?

The human egg is swept through the oviduct toward the uterus by

Sterilization,in which the sperm is surgically prevented from reaching the egg,is accomplished by

At the end of gastrulation,the ectoderm makes up the

Which of the following occurs during the process of labor?

Which of the following occurs during cellular migration and development into specialized tissue?

The brain and spinal cord are formed from

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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