Biology Mod 11 Practice Test

Front 1

Invertebrates

Back 1

Animals that lack a backbone

Front 2

Vertebrates

Back 2

Animals that possess a backbone

Front 3

Nematocysts

Back 3

Small capsules that contain a toxin which is injected into prey or predators

Front 4

Posterior end

Back 4

The end of an animal that contains its tail

Front 5

Hermaphroditic

Back 5

Possessing both the male and female reproductive organs

Front 6

Mantle

Back 6

A sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and performs respiration.

Front 7

What phylum is a sponge in?

Back 7

Phylum Porifera

Front 8

What phylum is a snail in?

Back 8

Phylum Mollusca

Front 9

What phylum is a jellyfish in ?

Back 9

Phylum Cnidaria

Front 10

What phylum is a segmented sea worm in?

Back 10

Phylum Annelida

Front 11

What phylum is a flatworm in?

Back 11

Phylum Platyhelminthes

Front 12

Are clams univalve or bivalve mollusks?

Back 12

Bivalve

Front 13

What do sponges eat and how do they get their food?

Back 13

They eat algae, bacteria, and organic matter that is in the water by pumping water though their bodies and capturing the food from the water

Front 14

What is the difference between a hard, prickly sponge and a soft sponge?

Back 14

Hard, prickly sponge contains spicules while soft sponges contain spogin

Front 15

Which phylum of animals discussed in this module has nematocysts?

Back 15

Phylum Cnidaria

Front 16

An earthworm's seminal vesicles are full. Has it mated yet?

Back 16

It has not yet mated

Front 17

What function does the cuticle perform in the earthworm?

Back 17

Allows it to get oxygen and release carbon dioxide

Front 18

Two members of phylum Platyhelminthes are studied. The first has a complex nervous system and the second does not. Which one if most likely the parasitic planarian?

Back 18

the second

Front 19

What is the most common form of asexual reproduction among the organisms of phylum Cnidaria?

Back 19

budding

Front 20

What is the common mode of asexual reproduction among the organisms of phylum Platyhelminthes?

Back 20

regeneration