Test3-Porifera

Question 1

-fera

Answer 1

bearing

Question 2

Environment or Habitat

Answer 2

marine and freshwater (smaller) [rivers and streams]

Question 3

Common representatives

Answer 3

Aiolochroia crassa
Agelas clathrodes
Sponges

Question 4

Life cycle

Answer 4

Reproduce sexually or asexually

males throw sperm into water and female pick up sperm (sexually)

Question 5

Importance to humans

Answer 5

bath sponges

stunt the growth of cancerous tumors with a chemical compound

Question 6

Relative complexity

Answer 6

simple

Question 7

Nearest relatives

Answer 7

choanoflagellates

Question 8

Calcium sponges

Answer 8

spicules made of calcium, chalky

Question 9

Glass sponges

Answer 9

spicules made of cillica

Question 10

Spongy sponges

Answer 10

spicules made of spangin-normal sponges, soft

Question 11

Organ systems

Answer 11

None: everything happens on the cellular level
no organs
some tissues
multicellular

Question 12

Filter feeders

Answer 12

take in water as it goes through and gets food from the water

Question 13

Mode of living

Answer 13

sessile

Question 14

Spicules

Answer 14

what supports the sponge-lock together

Question 15

Collar cells

Answer 15

take food as water goes by

Question 16

Pro

Answer 16

opening or passageway