Question 1

The segmented worms of the phylum Annelida

Accepted Answer

A) have an open circulatory system. 
B) possess setae on each segment. 
C) are acoelomate. 
D) move by use of flagella. 
E) display radial symmetry. 
A) have an open circulatory system. 
B) possess setae on each segment. 
C) are acoelomate. 
D) move by use of flagella. 
E) display radial symmetry.

Question 2

The closest living protistan relatives to animals are

Accepted Answer

A) poriferans. 
B) dinoflagellates. 
C) cyanobacteria. 
D) archaeabacteria. 
E) choanoflagellates. 
A) poriferans. 
B) dinoflagellates. 
C) cyanobacteria. 
D) archaeabacteria. 
E) choanoflagellates.

Question 3

Which of the following is a deuterostome phylum?

Accepted Answer

A) Arthropoda 
B) Echinodermata 
C) Porifera 
D) Platyhelminthes 
E) Annelida 
A) Arthropoda 
B) Echinodermata 
C) Porifera 
D) Platyhelminthes 
E) Annelida

Question 4

Which of the following is not a major defining chordate characteristic?

Accepted Answer

A) blocks of muscles from myomeres 
B) a pair of eyes at the anterior 
C) a hollow, dorsal nerve cord 
D) a notochord 
E) a tail extending beyond anus 
A) blocks of muscles from myomeres 
B) a pair of eyes at the anterior 
C) a hollow, dorsal nerve cord 
D) a notochord 
E) a tail extending beyond anus

Question 5

Notochords are found in

Accepted Answer

A) adult hemichordates (acorn worms). 
B) adult urochordates (tunicates). 
C) adult cephalochordates (lancelets). 
D) a and b only. 
E) b and c only. 
A) adult hemichordates (acorn worms). 
B) adult urochordates (tunicates). 
C) adult cephalochordates (lancelets). 
D) a and b only. 
E) b and c only.

Question 6

Contrast the medusa body form and the polyp body form of a cnidarian.

Accepted Answer

The medusa has the opening to

Question 7

Which of the following characteristics is not shared by typical birds and mammals?

Accepted Answer

A) four-chambered heart 
B) milk production 
C) four limbs 
D) endothermy 
E) insulating skin structures 
A) four-chambered heart 
B) milk production 
C) four limbs 
D) endothermy 
E) insulating skin structures

Question 8

Most members of the phylum Platyhelminthes

Accepted Answer

A) are free-living. 
B) exhibit radial symmetry. 
C) do not show cephalization. 
D) are of a single sex. 
E) are parasites. 
A) are free-living. 
B) exhibit radial symmetry. 
C) do not show cephalization. 
D) are of a single sex. 
E) are parasites.

Question 9

Cnidarians and ctenophores are similar in that they both have

Accepted Answer

A) radial symmetry. 
B) mesoderm. 
C) a digestive tract with two openings. 
D) a pseudocoel. 
E) nematocysts. 
A) radial symmetry. 
B) mesoderm. 
C) a digestive tract with two openings. 
D) a pseudocoel. 
E) nematocysts.

Question 10

It is clear that certain traits in early primate evolution played a key role in leading to the survival and further development of members of the order. Explain how traits such as manual dexterity, upright posture, acute vision, larger brain, extended infant care, and modified teeth laid the groundwork for the evolution of humans.

Accepted Answer

The development of an opposable thumb pr

Question 11

Barnacles belong to which of the following groups of invertebrates?

Accepted Answer

A) crustaceans 
B) mollusks 
C) annelids 
D) chelicerates 
E) brachiopods 
A) crustaceans 
B) mollusks 
C) annelids 
D) chelicerates 
E) brachiopods

Question 12

Which of the following is a type of ecdysozoan protostome?

Accepted Answer

A) Echinodermata 
B) Ctenophora 
C) Molluska 
D) Chordata 
E) Nematoda 
A) Echinodermata 
B) Ctenophora 
C) Molluska 
D) Chordata 
E) Nematoda

Question 13

The mantle in mollusks

Accepted Answer

A) secretes the shell and protects the animal. 
B) contains the internal organs. 
C) functions in obtaining food. 
D) is involved in movement. 
E) is composed of calcium carbonate. 
A) secretes the shell and protects the animal. 
B) contains the internal organs. 
C) functions in obtaining food. 
D) is involved in movement. 
E) is composed of calcium carbonate.

Question 14

What role has cultural evolution played in human success? What, if any, biological adaptations support this use of culture?

Accepted Answer

An answer should include a statement tha

Question 15

Describe the most well-developed organ system of a typical parasite.

Accepted Answer

The reproductive system, because a well

Question 16

Which of the following is a lophotrochozoan protostome?

Accepted Answer

A) arthropods 
B) cnidarians 
C) mollusks 
D) chordates 
E) nematodes 
A) arthropods 
B) cnidarians 
C) mollusks 
D) chordates 
E) nematodes

Question 17

Birds are able to maintain relatively constant body temperature regardless of external temperature. Therefore, birds are

Accepted Answer

A) homeopathic. 
B) homeothermic. 
C) ecdysozoans. 
D) apodans. 
E) amniotes. 
A) homeopathic. 
B) homeothermic. 
C) ecdysozoans. 
D) apodans. 
E) amniotes.

Question 18

These are members of the phylum Cnidaria.

Accepted Answer

A) sponges 
B) comb jellies 
C) sea anemones 
D) snails 
E) clams 
A) sponges 
B) comb jellies 
C) sea anemones 
D) snails 
E) clams

Question 19

Why is investigating evolutionary relationships by comparing gene sequences more precise than comparing body forms? How do the two methods compare if we consider divergent and convergent evolution?

Accepted Answer

When comparing body forms, it is easiest

Question 20

Compare the traits of hemichordates (acorn worms)to chordates.

Accepted Answer

Hemichordates and chordates bo

Exam 13: The Evolution and Diversity of Animals

The segmented worms of the phylum Annelida

The closest living protistan relatives to animals are

Which of the following is a deuterostome phylum?

Which of the following is not a major defining chordate characteristic?

Notochords are found in

Contrast the medusa body form and the polyp body form of a cnidarian.

Which of the following characteristics is not shared by typical birds and mammals?

Most members of the phylum Platyhelminthes

Cnidarians and ctenophores are similar in that they both have

Barnacles belong to which of the following groups of invertebrates?

Which of the following is a type of ecdysozoan protostome?

The mantle in mollusks

What role has cultural evolution played in human success? What, if any, biological adaptations support this use of culture?

Describe the most well-developed organ system of a typical parasite.

Which of the following is a lophotrochozoan protostome?

Birds are able to maintain relatively constant body temperature regardless of external temperature. Therefore, birds are

These are members of the phylum Cnidaria.

Why is investigating evolutionary relationships by comparing gene sequences more precise than comparing body forms? How do the two methods compare if we consider divergent and convergent evolution?

Compare the traits of hemichordates (acorn worms)to chordates.

What Is Life

Cells and the Chemistry of Life

How Cells Take in and Use Energy

The Cell Cycle

Patterns of Inheritance

DNA: The Thread of Life

Genes, Proteins, and Genetic Engineering

Reproduction and Development

The Mechanisms of Evolution

Lifes Origins and Biodiversity

Single-Celled Life

Fungi and Plants: Decomposers and Producers

Ecology of Populations and Communities

Ecosystems and the Biosphere

Body Function, Survival, and the Steady State

Circulation and Respiration

Defense Against Disease

Animal Nutrition and Digestion

Hormones: Messengers of Change

The Nervous System

The Body in Motion

Plant Architecture and Function

Plant Growth, Hormones, and Engineering

The Dynamic Plant

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