Unit 7

Question 1

What does Porifera mean?

Answer 1

Has porsel openings

Question 2

How many cell layers do porifera have?

Answer 2

Two

Question 3

What kind of animals belong to this phylum?

Answer 3

Sponges

Question 4

What does sessile mean?

Answer 4

Permanently

Question 5

What does the water current provide for the sponge?

Answer 5

Food, oxygen, reproduction, water, removal

Question 6

What is the function of that and me amenocytes?

Answer 6

Transports nutrients to the other cells

Question 7

What is used to identify sponges?

Answer 7

Spiccules

Question 8

What are the two skeletal structures of sponges?

Answer 8

Spicules + sponges

Question 9

What is the chief predator of the sponge?

Answer 9

Nudibranch

Question 10

In which two ways can sponges reproduce asexually?

Answer 10

Regeneration + budding

Question 11

How do sponges reproduce sexually?

Answer 11

Hermaphrodit + Cross -fertilization

Question 12

What are some examples of the phylum Cnidaria?

Answer 12

Jellyfish, corals, hydroids, Portuguese

Question 13

What kind of symmetry do cnidarians have?

Answer 13

Radial cemetery

Question 14

How many openings do cnidarians have to their digestive system?

Answer 14

1

Question 15

What are cnidocytes? What is a cnidocyte composed of?

Answer 15

Stinging cells

Question 16

What is the cylindrical body form with the oral end directed up?

Answer 16

Polyp

Question 17

Give examples of this body form

Answer 17

Anatomies, hydra, Portuguese man-of-war