Lesson 21 & 22

Question 1

What are the two body forms of cnidarians?

Answer 1

Polyp and Medusa

Question 2

So sea anemone & coral exhibit the Medusa stage?

Answer 2

No. Only Polyp

Question 3

What is a water vascular system?

Answer 3

It is used to help with feeding, respiration, movement, and sensation

Question 4

Animals in phylum cnidaria get there name from their cnidocytes which are…?

Answer 4

Stinging cells

Question 5

Cnidarians have two germ layers that make up their…?

Answer 5

Epithelial cells

Question 6

Echnoderm means…?

Answer 6

Spiny skin

Question 7

Do echnioderms have a respiratory system?

Answer 7

No

Question 8

What do echinoderms use for capturing prey, eating, and movement?

Answer 8

Tune feet

Question 9

What system is only found in animals from phylum Echinodermata?

Answer 9

Water vascular system

Question 10

What is the largest known invertebrate?

Answer 10

Colossal squid

Question 11

What is the only cephalopod with an external shell?

Answer 11

Nautilus

Question 12

Which class of mollusks are filter feeder?

Answer 12

Bivalvua

Question 13

A radula is used for what?

Answer 13

Digestion

Question 14

The shell of mollusks is secreted by the….?

Answer 14

Mantel

Question 15

The visceral mass contained most of the mollusks …?

Answer 15

Vital organs

Question 16

In mollusks, which organ is used for locomotion?

Answer 16

Foot