Question 1

Which of the following is an example of an escalation in parental investment?

Accepted Answer

A) moving young but not eggs inside the parent's body 
B) moving eggs but not young inside the parent's body 
C) moving eggs and young outside the parent's body 
D) moving eggs and young inside the parent's body 
A) moving young but not eggs inside the parent's body 
B) moving eggs but not young inside the parent's body 
C) moving eggs and young outside the parent's body 
D) moving eggs and young inside the parent's body

Question 2

The eggs of which organisms would contain the lowest percentage of yolk?

Accepted Answer

A) those of birds 
B) those of insects 
C) those of humans 
D) those of reptiles 
A) those of birds 
B) those of insects 
C) those of humans 
D) those of reptiles

Question 3

Identify each labelled part of the illustration.  
-fertilization

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 4

Put the following mechanisms of development in the order they occur.
-fifth mechanism

Accepted Answer

A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions 
A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions

Question 5

Which animal eggs contain very little yolk?

Accepted Answer

A) reptile eggs 
B) placental mammal eggs 
C) bird eggs 
D) insect eggs 
A) reptile eggs 
B) placental mammal eggs 
C) bird eggs 
D) insect eggs

Question 6

What is activated in response to induction by the optic vesicle?

Accepted Answer

A) apoptosis 
B) genes coding for only crystallin 
C) genes coding for only keratin 
D) genes coding for crystallin and keratin 
A) apoptosis 
B) genes coding for only crystallin 
C) genes coding for only keratin 
D) genes coding for crystallin and keratin

Question 7

During the process of giving birth in mammals, how do the fibres of the interpubic ligament behave?

Accepted Answer

A) Elastic fibres do not change, and collagen fibres slide in relation to each other. 
B) Elastic fibres stretch, and collagen fibres stretch in relation to each other. 
C) Elastic fibres stretch, and collagen fibres slide in relation to each other. 
D) Elastic fibres slide, and collagen fibres slide in relation to each other. 
A) Elastic fibres do not change, and collagen fibres slide in relation to each other. 
B) Elastic fibres stretch, and collagen fibres stretch in relation to each other. 
C) Elastic fibres stretch, and collagen fibres slide in relation to each other. 
D) Elastic fibres slide, and collagen fibres slide in relation to each other.

Question 8

How does the amount of yolk relate to the nourishment of the organism?

Accepted Answer

A) An egg lacking yolk contains all of the nutrients for the embryo's development. 
B) An egg with a large amount of yolk contains all of the nutrients for the embryo's development. 
C) An egg with a small amount of yolk contains all of the nutrients for the embryo's development. 
D) The amount of yolk does not affect the embryo's development. 
A) An egg lacking yolk contains all of the nutrients for the embryo's development. 
B) An egg with a large amount of yolk contains all of the nutrients for the embryo's development. 
C) An egg with a small amount of yolk contains all of the nutrients for the embryo's development. 
D) The amount of yolk does not affect the embryo's development.

Question 9

Match each term with its definition.
-notochord

Accepted Answer

A) undifferentiated muscle cells 
B) pigmented layer of cytoplasm opposite from point of entry of sperm 
C) rounded layer of cells at the surface of yolk in birds 
D) solid rod of tissue that is involved in neurulation 
E) fingerlike extensions into the endometrium
F)clear fibrous protein
G)programmed cell death
H)event when a group of cells influences a nearby group of cells 
A) undifferentiated muscle cells 
B) pigmented layer of cytoplasm opposite from point of entry of sperm 
C) rounded layer of cells at the surface of yolk in birds 
D) solid rod of tissue that is involved in neurulation 
E) fingerlike extensions into the endometrium
F)clear fibrous protein
G)programmed cell death
H)event when a group of cells influences a nearby group of cells

Question 10

Match each term with its definition.
-grey crescent

Accepted Answer

A) undifferentiated muscle cells 
B) pigmented layer of cytoplasm opposite from point of entry of sperm 
C) rounded layer of cells at the surface of yolk in birds 
D) solid rod of tissue that is involved in neurulation 
E) fingerlike extensions into the endometrium
F)clear fibrous protein
G)programmed cell death
H)event when a group of cells influences a nearby group of cells 
A) undifferentiated muscle cells 
B) pigmented layer of cytoplasm opposite from point of entry of sperm 
C) rounded layer of cells at the surface of yolk in birds 
D) solid rod of tissue that is involved in neurulation 
E) fingerlike extensions into the endometrium
F)clear fibrous protein
G)programmed cell death
H)event when a group of cells influences a nearby group of cells

Question 11

Match each term to its definition.
-blastula

Accepted Answer

A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity 
A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity

Question 12

Which sequence places the mechanisms of embryonic development in the correct order?

Accepted Answer

A) cleavage, gastrulation, organogenesis 
B) gastrulation, cleavage, organogenesis 
C) cleavage, organogenesis, gastrulation 
D) organogenesis, cleavage, gastrulation 
A) cleavage, gastrulation, organogenesis 
B) gastrulation, cleavage, organogenesis 
C) cleavage, organogenesis, gastrulation 
D) organogenesis, cleavage, gastrulation

Question 13

Identify each labelled part of the illustration.  
-sexual reproduction

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 14

Cleavage in a frog embryo takes place more quickly in the vegetal half.

Accepted Answer

A) True 
 B)False

Question 15

Match each term to its definition.
-gastrula

Accepted Answer

A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity 
A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity

Question 16

Match each term to its definition.
-cleavage

Accepted Answer

A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity 
A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity

Question 17

Identify each labelled part of the illustration.  
-organogenesis

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 18

Describe how the selective adhesion property of cells was proven.

Accepted Answer

Easily recognizable cells from the prima

Question 19

Put the following mechanisms of development in the order they occur.
-third mechanism

Accepted Answer

A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions 
A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions

Question 20

The material in the grey crescent of a frog embryo is necessary for normal development.

Accepted Answer

A) True 
 B)False

Exam 42: Animal Development

Which of the following is an example of an escalation in parental investment?

The eggs of which organisms would contain the lowest percentage of yolk?

Identify each labelled part of the illustration. -fertilization

Put the following mechanisms of development in the order they occur. -fifth mechanism

Which animal eggs contain very little yolk?

What is activated in response to induction by the optic vesicle?

During the process of giving birth in mammals, how do the fibres of the interpubic ligament behave?

How does the amount of yolk relate to the nourishment of the organism?

Match each term with its definition. -notochord

Match each term with its definition. -grey crescent

Match each term to its definition. -blastula

Which sequence places the mechanisms of embryonic development in the correct order?

Identify each labelled part of the illustration. -sexual reproduction

Cleavage in a frog embryo takes place more quickly in the vegetal half.

Match each term to its definition. -gastrula

Match each term to its definition. -cleavage

Identify each labelled part of the illustration. -organogenesis

Describe how the selective adhesion property of cells was proven.

Put the following mechanisms of development in the order they occur. -third mechanism

The material in the grey crescent of a frog embryo is necessary for normal development.

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

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