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Biology : The Unity and Diversity of Life

Cecie Starr, Christine A. Evers; Lisa Starr

Chapter 24

Animal Evolution-The Invertebrates - all with Video Answers

Educators

Chapter Questions

00:45

Problem 1

True or false? Animal cells do not have walls.

Magdalena Bentia
Magdalena Bentia
Numerade Educator
01:06

Problem 2

A body cavity fully lined with tissue derived from mesoderm is called a ________.
a. coelom
b. pseudocoelom
c. complete digestive tract
d. gastrovascular cavity

Charles Machakwa
Charles Machakwa
Numerade Educator
01:05

Problem 3

Flatworms, annelids, and roundworms are all ________.
a. arthropods
b. aceolomate
c. protostomes
d. radially symmetrical

Charles Machakwa
Charles Machakwa
Numerade Educator
01:23

Problem 4

The oldest body fossils of a land animal are of ________.
a. insects
b. roundworms
c. cnidarians
d. myriapods

Charles Machakwa
Charles Machakwa
Numerade Educator
02:24

Problem 5

________ function(s) in the movement of cnidarians.
a. A hydrostatic skeleton
b. Tube feet
c. Cnidocytes
d. Malpighian tubules

Magdalena Bentia
Magdalena Bentia
Numerade Educator
00:36

Problem 6

Earthworms are most closely related to ________.
a. tapeworms
b. roundworms
c. planarians
d. leeches

Magdalena Bentia
Magdalena Bentia
Numerade Educator
01:02

Problem 7

Annelids and ________ have a closed circulatory system.
a. insects
b. cephalopods
c. flatworms
d. sea stars

Magdalena Bentia
Magdalena Bentia
Numerade Educator
00:13

Problem 8

Which invertebrate phylum includes the most species?
a. mollusks
b. roundworms
c. arthropods
d. flatworms

Magdalena Bentia
Magdalena Bentia
Numerade Educator
00:43

Problem 9

A ________ can reassemble if broken into individual cells.
a. sea anemone
b. roundworm
c. sea star
d. sponge

Charles Machakwa
Charles Machakwa
Numerade Educator
00:25

Problem 10

A slug is a land-dwelling ________.
a. arthropod
b. gastropod
c. cephalopod
d. crustacean

Magdalena Bentia
Magdalena Bentia
Numerade Educator
00:21

Problem 11

A barnacle is a shelled ________.
a. arthropod
b. gastropod
c. cephalopod
d. crustacean

Magdalena Bentia
Magdalena Bentia
Numerade Educator
00:45

Problem 12

_________ include the only winged invertebrates.
a. Cnidarians
b. Echinoderms
c. Insects
d. Crustaceans

Charles Machakwa
Charles Machakwa
Numerade Educator
01:10

Problem 13

The _______ and _______ are grouped as Ecdysozoa because they both molt.
a. cnidarians/arthropods
b. echinoderms/flatworms
c. annelids/mollusks
d. insects/roundworms

Charles Machakwa
Charles Machakwa
Numerade Educator
00:36

Problem 14

Match each structure with its descriptions.
________ radula
________ exoskeleton
________ endoskeleton
________ cnidocyte
________ compound eye
________ tube foot
________ trochophore
________ Malpighian tubule
________ gastrovascular cavity
a. internal skeleton
b. external skeleton
c. stinging cell of cnidarians
d. excretory organ of insects
e. mollusk feeding device
larva of annelid or mollusk
g. has many lenses
h. moves an echinoderm
i. digests a planarian's food

Mishal Gul
Mishal Gul
Numerade Educator
00:25

Problem 15

Match the organisms with their descriptions.
________ echinoderms
________ sponges
________ cnidarians
________ flatworms
________ roundworms
________ annelids
________ arthropods
________ mollusks
a. stinging cells in tentacles
b. simplest organ systems
c. no tissues, filters out food
d. jointed exoskeleton
e. mantle over body mass
f. segmented worms
g. spiny skinned deuterostomes
h. complete gut, pseudocoelom

Mishal Gul
Mishal Gul
Numerade Educator