Question 1

Respond to the following statements with reference to the five terms below.​
-These reorganize themselves into the gastrula.

Accepted Answer

A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm 
A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm

Question 2

Which of the following may contribute to pregnancy problems?

Accepted Answer

A)  ​taking naps 
B)  ​being active 
C)  ​being over 30 
D)  ​having dietary deficiencies 
E)  ​having limited protein intake 
A)  ​taking naps 
B)  ​being active 
C)  ​being over 30 
D)  ​having dietary deficiencies 
E)  ​having limited protein intake

Question 3

Respond to the following statements with reference to the five terms below.​
-It forms between the other two primary tissue layers.

Accepted Answer

A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm 
A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm

Question 4

The human brain is fully functional by the end of the ____.

Accepted Answer

A)  ​first trimester 
B)  ​third month 
C)  ​third trimester 
D)  ​ninth month 
E)  ​seventh month 
A)  ​first trimester 
B)  ​third month 
C)  ​third trimester 
D)  ​ninth month 
E)  ​seventh month

Question 5

Use the figure above showing human embryonic developmental day 14 to answer the following question.
-The chorionic cavity is indicated by ____.

Accepted Answer

A)  ​A 
B)  ​B 
C)  ​C 
D)  ​D 
E)  ​E 
A)  ​A 
B)  ​B 
C)  ​C 
D)  ​D 
E)  ​E

Question 6

Respond to the following statements with reference to the five terms listed below.​
-This is a longitudinal series of paired segments.

Accepted Answer

A) ​zygote 
B) ​blastula 
C) ​cleavage 
D) ​gastrula 
E) ​somites 
A) ​zygote 
B) ​blastula 
C) ​cleavage 
D) ​gastrula 
E) ​somites

Question 7

The placenta ____.

Accepted Answer

A)  ​forms from endometrial and extraembryonic tissues 
B)  ​will cover about one-half of the inner uterine surface at full term 
C)  ​intermingles fetal blood with maternal blood 
D)  ​secretes only estrogen to maintain the uterine lining during the second and third trimesters 
E)  ​secretes only progesterone to maintain the uterine lining during the second and third trimesters 
A)  ​forms from endometrial and extraembryonic tissues 
B)  ​will cover about one-half of the inner uterine surface at full term 
C)  ​intermingles fetal blood with maternal blood 
D)  ​secretes only estrogen to maintain the uterine lining during the second and third trimesters 
E)  ​secretes only progesterone to maintain the uterine lining during the second and third trimesters

Question 8

Four of the following can cause birth defects. Which one is the exception?

Accepted Answer

A)  ​tobacco 
B)  ​alcohol 
C)  ​poor nutrition 
D)  ​rubella 
E)  ​folic acid 
A)  ​tobacco 
B)  ​alcohol 
C)  ​poor nutrition 
D)  ​rubella 
E)  ​folic acid

Question 9

In amphibians, a pigmented area called the ____ appears after fertilization.

Accepted Answer

A)  ​gray matter 
B)  ​gray crescent 
C)  ​blastomere 
D)  ​cleavage plane 
E)  ​gray oocyte 
A)  ​gray matter 
B)  ​gray crescent 
C)  ​blastomere 
D)  ​cleavage plane 
E)  ​gray oocyte

Question 10

Four of the following have radial cleavage patterns. Which one is the exception?

Accepted Answer

A)  ​snails 
B)  ​salamanders 
C)  ​earthworms 
D)  ​sea stars 
E)  ​mammals 
A)  ​snails 
B)  ​salamanders 
C)  ​earthworms 
D)  ​sea stars 
E)  ​mammals

Question 11

What unusual features would be found on the newborn if human embryos did not experience apoptosis?

Accepted Answer

​The newborn would still posse

Question 12

In the placenta, nutrients move from mother to baby by ____.

Accepted Answer

A)  ​activated transport 
B)  ​the Rh factor 
C)  ​transport proteins 
D)  ​simple diffusion 
E)  ​HCG 
A)  ​activated transport 
B)  ​the Rh factor 
C)  ​transport proteins 
D)  ​simple diffusion 
E)  ​HCG

Question 13

Gastrulation produces ____.

Accepted Answer

A)  ​hollow balls of cells 
B)  ​embryos with three primary tissue layers 
C)  ​solid balls of cells 
D)  ​specific organs 
E)  ​dead tissue 
A)  ​hollow balls of cells 
B)  ​embryos with three primary tissue layers 
C)  ​solid balls of cells 
D)  ​specific organs 
E)  ​dead tissue

Question 14

Use the figure above showing the process of gastrulation to answer the following question.
-The letter "A" in the accompanying figure represents ____.

Accepted Answer

A)  ​ectoderm 
B)  ​endoderm 
C)  ​mesoderm 
D)  ​neural plate 
E)  ​yolk 
A)  ​ectoderm 
B)  ​endoderm 
C)  ​mesoderm 
D)  ​neural plate 
E)  ​yolk

Question 15

Respond to the following statements with reference to the five terms below.​
-fertilization

Accepted Answer

A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm 
A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm

Question 16

Respond to the following statements with reference to the five terms below.​
-animal pole

Accepted Answer

A)  	visible marker of the site where an amphibian's body axis will be established and where gastrulation will begin 
B)  	the formation of three embryonic tissue layers 
C)  	the fusion of male and female nuclei 
D)  	the entire body divides transversely; each half grows and regenerates the missing part 
E)  	selective gene expression results in different cell types
F) 	subdividing of the zygote by mitosis; no growth occurs
G) 	region of zygote that has less yolk and is pigmented
H) 	an embryonic stage of development that has three primary tissue layers before organogenesis begins
I) 	the formation of organs
J) 	one body part develops in response to signals from an adjacent part
K) 	the growth, shaping, and spatial coordination of tissues and organs so that a predefined pattern of the whole organism results
L) 	occurs in the formation of the human hand 
A)  	visible marker of the site where an amphibian's body axis will be established and where gastrulation will begin 
B)  	the formation of three embryonic tissue layers 
C)  	the fusion of male and female nuclei 
D)  	the entire body divides transversely; each half grows and regenerates the missing part 
E)  	selective gene expression results in different cell types
F) 	subdividing of the zygote by mitosis; no growth occurs
G) 	region of zygote that has less yolk and is pigmented
H) 	an embryonic stage of development that has three primary tissue layers before organogenesis begins
I) 	the formation of organs
J) 	one body part develops in response to signals from an adjacent part
K) 	the growth, shaping, and spatial coordination of tissues and organs so that a predefined pattern of the whole organism results
L) 	occurs in the formation of the human hand

Question 17

Respond to the following statements with reference to the five terms below.​
-embryonic induction

Accepted Answer

A)  	visible marker of the site where an amphibian's body axis will be established and where gastrulation will begin 
B)  	the formation of three embryonic tissue layers 
C)  	the fusion of male and female nuclei 
D)  	the entire body divides transversely; each half grows and regenerates the missing part 
E)  	selective gene expression results in different cell types
F) 	subdividing of the zygote by mitosis; no growth occurs
G) 	region of zygote that has less yolk and is pigmented
H) 	an embryonic stage of development that has three primary tissue layers before organogenesis begins
I) 	the formation of organs
J) 	one body part develops in response to signals from an adjacent part
K) 	the growth, shaping, and spatial coordination of tissues and organs so that a predefined pattern of the whole organism results
L) 	occurs in the formation of the human hand 
A)  	visible marker of the site where an amphibian's body axis will be established and where gastrulation will begin 
B)  	the formation of three embryonic tissue layers 
C)  	the fusion of male and female nuclei 
D)  	the entire body divides transversely; each half grows and regenerates the missing part 
E)  	selective gene expression results in different cell types
F) 	subdividing of the zygote by mitosis; no growth occurs
G) 	region of zygote that has less yolk and is pigmented
H) 	an embryonic stage of development that has three primary tissue layers before organogenesis begins
I) 	the formation of organs
J) 	one body part develops in response to signals from an adjacent part
K) 	the growth, shaping, and spatial coordination of tissues and organs so that a predefined pattern of the whole organism results
L) 	occurs in the formation of the human hand

Question 18

Respond to the following statements with reference to the five terms below.​
-This starts the gut's inner lining.

Accepted Answer

A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm 
A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm

Question 19

Respond to the following statements with reference to the five terms below.​
-These are the source of most bones and the skeletal muscle of the head and trunk.

Accepted Answer

A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm 
A) ​somites 
B) ​blastomeres 
C) ​ectoderm 
D) ​mesoderm 
E) ​endoderm

Question 20

Which stage of development carves up the zygote's cytoplasm?

Accepted Answer

A)  ​gamete formation 
B)  ​cleavage 
C)  ​gastrulation 
D)  ​organ formation 
E)  ​tissue specialization 
A)  ​gamete formation 
B)  ​cleavage 
C)  ​gastrulation 
D)  ​organ formation 
E)  ​tissue specialization

Exam 42: Animal Development

Respond to the following statements with reference to the five terms below.​ -These reorganize themselves into the gastrula.

Which of the following may contribute to pregnancy problems?

Respond to the following statements with reference to the five terms below.​ -It forms between the other two primary tissue layers.

The human brain is fully functional by the end of the ____.

Use the figure above showing human embryonic developmental day 14 to answer the following question. -The chorionic cavity is indicated by ____.

Respond to the following statements with reference to the five terms listed below.​ -This is a longitudinal series of paired segments.

The placenta ____.

Four of the following can cause birth defects. Which one is the exception?

In amphibians, a pigmented area called the ____ appears after fertilization.

Four of the following have radial cleavage patterns. Which one is the exception?

What unusual features would be found on the newborn if human embryos did not experience apoptosis?

In the placenta, nutrients move from mother to baby by ____.

Gastrulation produces ____.

Use the figure above showing the process of gastrulation to answer the following question. -The letter "A" in the accompanying figure represents ____.

Respond to the following statements with reference to the five terms below.​ -fertilization

Respond to the following statements with reference to the five terms below.​ -animal pole

Respond to the following statements with reference to the five terms below.​ -embryonic induction

Respond to the following statements with reference to the five terms below.​ -This starts the gut's inner lining.

Respond to the following statements with reference to the five terms below.​ -These are the source of most bones and the skeletal muscle of the head and trunk.

Which stage of development carves up the zygote's cytoplasm?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Behavior

Filters

Respond to the following statements with reference to the five terms below. -These reorganize themselves into the gastrula.

Respond to the following statements with reference to the five terms below. -It forms between the other two primary tissue layers.

Respond to the following statements with reference to the five terms listed below. -This is a longitudinal series of paired segments.

Respond to the following statements with reference to the five terms below. -fertilization

Respond to the following statements with reference to the five terms below. -animal pole

Respond to the following statements with reference to the five terms below. -embryonic induction

Respond to the following statements with reference to the five terms below. -This starts the gut's inner lining.

Respond to the following statements with reference to the five terms below. -These are the source of most bones and the skeletal muscle of the head and trunk.