Question 1

We often hear the terms protists,protozoans,and metazoans;briefly explain the relationship among them.

Accepted Answer

When we think about the origin of animal

Question 2

Which characteristics do annelids and arthropods have in common?

Accepted Answer

A) Both have feeding grooves. 
B) Both exhibit metamorphosis. 
C) Both are metameric. 
D) Both have a chitin-based body covering. 
A) Both have feeding grooves. 
B) Both exhibit metamorphosis. 
C) Both are metameric. 
D) Both have a chitin-based body covering.

Question 3

Which of the following statements is true with respect to myosin?

Accepted Answer

A) Plants,fungi,and animals share the same myosin families. 
B) Myosin is found in all prokaryotes and eukaryotes. 
C) Different classes of myosins are distinguished by differences in structural organization and amino acid sequence. 
D) Cardiac α-myosin allows for greater contractile efficiency. 
A) Plants,fungi,and animals share the same myosin families. 
B) Myosin is found in all prokaryotes and eukaryotes. 
C) Different classes of myosins are distinguished by differences in structural organization and amino acid sequence. 
D) Cardiac α-myosin allows for greater contractile efficiency.

Question 4

Which of the following statements correctly describes birds?

Accepted Answer

A) Birds are modern reptiles. 
B) Birds differ from other reptiles in their thermal biology. 
C) Birds are the only remaining representatives of the therapsids. 
D) A and B 
A) Birds are modern reptiles. 
B) Birds differ from other reptiles in their thermal biology. 
C) Birds are the only remaining representatives of the therapsids. 
D) A and B

Question 5

The first animals to show true tissues were

Accepted Answer

A) sponges. 
B) placozoans. 
C) cnidarians. 
D) ctenophores. 
A) sponges. 
B) placozoans. 
C) cnidarians. 
D) ctenophores.

Question 6

In echinoderms and chordates,the mouth forms second;therefore,both are__________________.

Accepted Answer

The answer of In echinoderms and chordates,the mouth forms second;therefore,both...

Question 7

One key advantage associated with bilateral symmetry in animals is

Accepted Answer

A) an increase in speed. 
B) the presence of a coelom. 
C) the evolution of limbs. 
D) the evolution of cephalization. 
A) an increase in speed. 
B) the presence of a coelom. 
C) the evolution of limbs. 
D) the evolution of cephalization.

Question 8

From an evolutionary perspective,briefly explain why amphibian physiology provides an important link between aquatic and terrestrial organisms.

Accepted Answer

Amphibians are intermediate between fish

Question 9

One of the biggest challenges facing terrestrial organisms is to

Accepted Answer

A) escape from predators. 
B) survive food shortages. 
C) reduce water loss. 
D) find shelter. 
A) escape from predators. 
B) survive food shortages. 
C) reduce water loss. 
D) find shelter.

Question 10

The __________ is considered to be the earliest life form.

Accepted Answer

The answer of The __________ is considered to be the...

Question 11

Which of the following pairs is correctly matched?

Accepted Answer

A) Choanoflagellates and Cnidarians 
B) Paramecium and ciliated herbivore 
C) ancestors of fungi and plants with no cell walls 
D) choanocytes and flagellated cells in sponges 
A) Choanoflagellates and Cnidarians 
B) Paramecium and ciliated herbivore 
C) ancestors of fungi and plants with no cell walls 
D) choanocytes and flagellated cells in sponges

Question 12

Amphibians differ from other tetrapods in that amphibians

Accepted Answer

A) are much smaller. 
B) have a more rigid spinal column. 
C) depend on water for reproduction. 
D) A and C 
A) are much smaller. 
B) have a more rigid spinal column. 
C) depend on water for reproduction. 
D) A and C

Question 13

Would you expect gene duplication,such as seen in the Hox gene,to lead to significant changes in evolution of traits?

Accepted Answer

A) No,because a duplicated gene would most likely carry a deleterious mutation. 
B) No,because a duplicated gene would be identical to the original gene and perform the original function. 
C) Yes,because one gene would perform a specific function,but duplicated copies could perform new functions. 
D) Yes,because the Hox gene controls all traits. 
A) No,because a duplicated gene would most likely carry a deleterious mutation. 
B) No,because a duplicated gene would be identical to the original gene and perform the original function. 
C) Yes,because one gene would perform a specific function,but duplicated copies could perform new functions. 
D) Yes,because the Hox gene controls all traits.

Question 14

The body plan of sponges is _____________,while cnidarians are ______________________.

Accepted Answer

asymmetric

Question 15

The first group of vertebrates to successfully colonize land was the __________________.

Accepted Answer

The answer of The first group of vertebrates to successfully...

Question 16

Describe some key physiological adaptations that allowed animals to successfully colonize terrestrial environments.

Accepted Answer

Animals had to evolve physiological adap

Question 17

Triploblastic animals are

Accepted Answer

A) acoelomate. 
B) pseudocoelomate. 
C) coelomate. 
D) partially coelomate. 
A) acoelomate. 
B) pseudocoelomate. 
C) coelomate. 
D) partially coelomate.

Question 18

Which of the following statements best describes mollusks?

Accepted Answer

A) Mollusks include gastropods,bivalves,and cephalopods;they have a reduced coelom,and many move at a sluggish pace. 
B) Mollusks include gastropods,bivalves,and cephalopods;many move at a sluggish pace,and all are aquatic. 
C) Mollusks include gastropods and bivalves;several bivalves are terrestrial with adaptations to withstand severe dehydration. 
D) Mollusks include gastropods and bivalves,have a mantle,and all are aquatic. 
A) Mollusks include gastropods,bivalves,and cephalopods;they have a reduced coelom,and many move at a sluggish pace. 
B) Mollusks include gastropods,bivalves,and cephalopods;many move at a sluggish pace,and all are aquatic. 
C) Mollusks include gastropods and bivalves;several bivalves are terrestrial with adaptations to withstand severe dehydration. 
D) Mollusks include gastropods and bivalves,have a mantle,and all are aquatic.

Question 19

Which of the following statements is correct?

Accepted Answer

A) In deuterostome animals,the blastopore becomes the mouth and the anus forms at a distant site. 
B) In coelomate animals,the coelom is located between the endoderm and the mesoderm. 
C) Arthropods show metamerism and tagmatization. 
D) Deuterostomes include the arthropods,echinoderms,and chordates. 
A) In deuterostome animals,the blastopore becomes the mouth and the anus forms at a distant site. 
B) In coelomate animals,the coelom is located between the endoderm and the mesoderm. 
C) Arthropods show metamerism and tagmatization. 
D) Deuterostomes include the arthropods,echinoderms,and chordates.

Question 20

Which of the following characteristics apply to all protists?

Accepted Answer

A) They are animal-like. 
B) They can photosynthesize. 
C) They have a nucleus. 
D) They have a cell wall. 
A) They are animal-like. 
B) They can photosynthesize. 
C) They have a nucleus. 
D) They have a cell wall.

We often hear the terms protists,protozoans,and metazoans;briefly explain the relationship among them.

Which characteristics do annelids and arthropods have in common?

Which of the following statements is true with respect to myosin?

Which of the following statements correctly describes birds?

The first animals to show true tissues were

In echinoderms and chordates,the mouth forms second;therefore,both are__________________.

One key advantage associated with bilateral symmetry in animals is

From an evolutionary perspective,briefly explain why amphibian physiology provides an important link between aquatic and terrestrial organisms.

One of the biggest challenges facing terrestrial organisms is to

The __________ is considered to be the earliest life form.

Which of the following pairs is correctly matched?

Amphibians differ from other tetrapods in that amphibians

Would you expect gene duplication,such as seen in the Hox gene,to lead to significant changes in evolution of traits?

The body plan of sponges is _,while cnidarians are __________.

The first group of vertebrates to successfully colonize land was the __________________.

Describe some key physiological adaptations that allowed animals to successfully colonize terrestrial environments.

Triploblastic animals are

Which of the following statements best describes mollusks?

Which of the following statements is correct?

Which of the following characteristics apply to all protists?

Introduction to Physiological Principles

Chemistry, biochemistry, and Cell Physiology

Cell Signaling and Endocrine Regulation

Neuron Structure and Function

Cellular Movement and Muscles

Sensory Systems

Functional Organization of Nervous Systems

Circulatory Systems

Immune Systems

Respiratory Systems

Locomotion

Ion and Water Balance

Digestion and Energy Metabolism

Thermal Physiology

Reproductive Physiology

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Exam 2: Physiological Evolution of Animals

We often hear the terms protists,protozoans,and metazoans;briefly explain the relationship among them.

Which characteristics do annelids and arthropods have in common?

Which of the following statements is true with respect to myosin?

Which of the following statements correctly describes birds?

The first animals to show true tissues were

In echinoderms and chordates,the mouth forms second;therefore,both are__________________.

One key advantage associated with bilateral symmetry in animals is

From an evolutionary perspective,briefly explain why amphibian physiology provides an important link between aquatic and terrestrial organisms.

One of the biggest challenges facing terrestrial organisms is to

The __________ is considered to be the earliest life form.

Which of the following pairs is correctly matched?

Amphibians differ from other tetrapods in that amphibians

Would you expect gene duplication,such as seen in the Hox gene,to lead to significant changes in evolution of traits?

The body plan of sponges is _____________,while cnidarians are ______________________.

The first group of vertebrates to successfully colonize land was the __________________.

Describe some key physiological adaptations that allowed animals to successfully colonize terrestrial environments.

Triploblastic animals are

Which of the following statements best describes mollusks?

Which of the following statements is correct?

Which of the following characteristics apply to all protists?

Introduction to Physiological Principles

Chemistry, biochemistry, and Cell Physiology

Cell Signaling and Endocrine Regulation

Neuron Structure and Function

Cellular Movement and Muscles

Sensory Systems

Functional Organization of Nervous Systems

Circulatory Systems

Immune Systems

Respiratory Systems

Locomotion

Ion and Water Balance

Digestion and Energy Metabolism

Thermal Physiology

Reproductive Physiology

Filters

The body plan of sponges is _,while cnidarians are __________.