Mod 11

Question 1

Invertebrates

Answer 1

animals that lack a backbone

Question 2

Vertebrates

Answer 2

animals that possess a backbone

Question 3

Nematocysts

Answer 3

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

Question 4

Posterior End

Answer 4

the end of the animal that contains its tail

Question 5

Hermaphroditic

Answer 5

possessing both the male and female reproductive parts

Question 6

Mantle

Answer 6

a sheath of tissue that encloses the vital organs of a mollusk, secretes its shell, and performs respiration

Question 7

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

Answer 7

Sponges eat algae, bacteria and organic matter. They suck water in and filter it. They eat

Question 8

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

Answer 8

Hard prickly sponges contain spicules

soft sponges contain spongin

Question 9

Which Phylum of animal discussed in this module has Nematocysts?

Answer 9

Cnidaria

Question 10

An Earthworm’s seminal vesicles are full has he mated?

Answer 10

No it has not yet mated

Question 11

What function does the cuticle perform in an earthworm?

Answer 11

It allows the earthworm to get oxygen and release carbon dioxide?

Question 12

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

Answer 12

The 2nd one is the parisite (the one with the simple nervous system)

Question 13

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

Answer 13

Budding

Question 14

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

Answer 14

Regeneration