Question 1

A lancelet is

Accepted Answer

A) an invertebrate chordate. 
B) a vertebrate. 
C) an echinoderm. 
D) an amphibian. 
E) a fish. 
A) an invertebrate chordate. 
B) a vertebrate. 
C) an echinoderm. 
D) an amphibian. 
E) a fish. A

Question 2

Flatworms are very thin and can exchange materials across their surface.Flatworms lack which of the following anatomical systems?

Accepted Answer

A) respiratory 
B) nervous 
C) digestive 
D) movement 
E) excretion 
A) respiratory 
B) nervous 
C) digestive 
D) movement 
E) excretion A

Question 3

A circulatory system that keeps blood confined within vessels after leaving the heart is

Accepted Answer

A) a closed circulatory system. 
B) a gastrovascular cavity. 
C) an open circulatory system. 
D) an incomplete circulatory system. 
E) a complete circulatory system. 
A) a closed circulatory system. 
B) a gastrovascular cavity. 
C) an open circulatory system. 
D) an incomplete circulatory system. 
E) a complete circulatory system. A

Question 4

All cnidarians share the ability to do which of the following?

Accepted Answer

A) photosynthesize 
B) secrete enzymes to digest food 
C) sting predators and prey 
D) live on land 
E) fly 
A) photosynthesize 
B) secrete enzymes to digest food 
C) sting predators and prey 
D) live on land 
E) fly

Question 5

An internal membrane in chordates that protects the developing fetus is the notochord.

Accepted Answer

A) True 
 B)False

Question 6

The free-swimming tunicate larva resembles a tadpole.Once it settles headfirst onto a solid surface,the tail and notochord disappear and the nerve cord shrinks to nearly nothing.The adults,which are usually sessile,retain only the pharyngeal slits.Neither adult nor larva is segmented.A tunicate is in which of the following phyla?

Accepted Answer

A) Mollusca 
B) Annelida 
C) Nematoda 
D) Chordata 
E) Echinodermata 
A) Mollusca 
B) Annelida 
C) Nematoda 
D) Chordata 
E) Echinodermata

Question 7

Hominids include

Accepted Answer

A) humans. 
B) orangutans. 
C) chimpanzees. 
D) gorillas. 
E) All answers are correct. 
A) humans. 
B) orangutans. 
C) chimpanzees. 
D) gorillas. 
E) All answers are correct.

Question 8

A mollusk with multiple arms for locomotion and grabbing prey is a

Accepted Answer

A) gastropod. 
B) cephalopod. 
C) bivalve. 
D) chiton. 
E) flukE. 
A) gastropod. 
B) cephalopod. 
C) bivalve. 
D) chiton. 
E) flukE.

Question 9

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the

Accepted Answer

A) pachyderm. 
B) ectoderm. 
C) mesoderm. 
D) endoderm. 
E) protoderm. 
A) pachyderm. 
B) ectoderm. 
C) mesoderm. 
D) endoderm. 
E) protoderm.

Question 10

Mollusks that have two-part hinged shells are called bivalves.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is a characteristic of annelids?

Accepted Answer

A) radial symmetry 
B) cephalization 
C) psuedocoelom 
D) closed circulatory system 
E) incomplete digestive tract 
A) radial symmetry 
B) cephalization 
C) psuedocoelom 
D) closed circulatory system 
E) incomplete digestive tract

Question 12

Animals are very diverse.Which of the following is NOT an animal?

Accepted Answer

A) penguin 
B) mushroom 
C) shrimp 
D) sponge 
E) spider 
A) penguin 
B) mushroom 
C) shrimp 
D) sponge 
E) spider

Question 13

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an)

Accepted Answer

A) cranium. 
B) notochord. 
C) amnion. 
D) vertebra. 
E) jaw. 
A) cranium. 
B) notochord. 
C) amnion. 
D) vertebra. 
E) jaw.

Question 14

The first animals evolved ______;the first chordates evolved ______.

Accepted Answer

A) on land;in water 
B) in water;on land 
C) in water;in water 
D) from insects;from fishes 
E) second;first 
A) on land;in water 
B) in water;on land 
C) in water;in water 
D) from insects;from fishes 
E) second;first

Question 15

An animal that maintains its body temperature by using heat generated from its own metabolism is a(an)

Accepted Answer

A) endotherm. 
B) ectotherm. 
C) thermophile. 
D) mesophile. 
E) amniotE. 
A) endotherm. 
B) ectotherm. 
C) thermophile. 
D) mesophile. 
E) amniotE.

Question 16

In most species,the female frog lays her eggs directly in the water as a male clasps her back and releases sperm.The fertilized eggs hatch as legless,aquatic tadpoles.Most tadpoles feed on algae and have gills.As they mature,tadpoles develop legs and lungs,lose the tail,and acquire carnivorous tastes.The primary function of external gills in aquatic animals is to

Accepted Answer

A) exchange gases with the water. 
B) transport blood. 
C) relay nerve impulses. 
D) secrete reproductive hormones. 
E) defend against invading microorganisms. 
A) exchange gases with the water. 
B) transport blood. 
C) relay nerve impulses. 
D) secrete reproductive hormones. 
E) defend against invading microorganisms.

Question 17

Leeches and earthworms belong to the phylum

Accepted Answer

A) PoriferA. 
B) Mollusca. 
C) Annelida. 
D) Nematoda. 
E) Platyhelminthes. 
A) PoriferA. 
B) Mollusca. 
C) Annelida. 
D) Nematoda. 
E) Platyhelminthes.

Question 18

Advantages of bipedalism include

Accepted Answer

A) movement through the treetops and clinging to vines. 
B) the ability to run faster. 
C) freeing of hands to carry objects and ability to use tools. 
D) increased brain size. 
E) All answers are correct. 
A) movement through the treetops and clinging to vines. 
B) the ability to run faster. 
C) freeing of hands to carry objects and ability to use tools. 
D) increased brain size. 
E) All answers are correct.

Question 19

An open circulatory system keeps blood in specialized vessels as the blood flows throughout the body.

Accepted Answer

A) True 
 B)False

Question 20

Cnidarians are animals found in ______ environments.

Accepted Answer

A) land-dwelling 
B) tree-dwelling 
C) desert 
D) All answers are correct. 
E) aquatic 
A) land-dwelling 
B) tree-dwelling 
C) desert 
D) All answers are correct. 
E) aquatic

Exam 17: Evolution and Diversity of Animals

A lancelet is

Flatworms are very thin and can exchange materials across their surface.Flatworms lack which of the following anatomical systems?

A circulatory system that keeps blood confined within vessels after leaving the heart is

All cnidarians share the ability to do which of the following?

An internal membrane in chordates that protects the developing fetus is the notochord.

Hominids include

A mollusk with multiple arms for locomotion and grabbing prey is a

The embryonic germ layer of tissue in animals that develops into the muscles and reproductive system is the

Mollusks that have two-part hinged shells are called bivalves.

Which of the following is a characteristic of annelids?

Animals are very diverse.Which of the following is NOT an animal?

A bony or cartilaginous structure that surrounds and protects the brain of chordates is a(an)

The first animals evolved ______;the first chordates evolved ______.

An animal that maintains its body temperature by using heat generated from its own metabolism is a(an)

Leeches and earthworms belong to the phylum

Advantages of bipedalism include

An open circulatory system keeps blood in specialized vessels as the blood flows throughout the body.

Cnidarians are animals found in ______ environments.

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

DNA Structure and Gene Function

DNA Replication and Cell Division

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Population Ecology

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

Regulating Temperature, nutrients, and Body Fluids

The Immune System

Animal Reproduction and Development

Filters

The first animals evolved ;the first chordates evolved .