Unit 4 test

Question 1

Sponges use mucus to do which of the following?

a) asexual reproduction
b) prevent Predation
c) make themself slippery
d) sexual reproduction.

Answer 1

b) Prevent Predation

Question 2

2) ____In which of the following situations will a sponge not regenerate?

a) A sponge grows and breaks off a bud.
b) A sponge is broken by a storm.
c) A chunk of a sponge breaks off and begins to grow.

d) A fish takes a bite out of a sponge.

Answer 2

b) A sponge is broken by a storm

Question 3

3) ____A vertebrate is anything without a spine.

a) True
b) False

Answer 3

b) False

Question 4

4) ____Epithelial tissue lines the outside of a sponge. It opens and closes pores to regulate water.

a) True
b) False

Answer 4

a) True

Question 5

All simple animals have at least two bodily openings.

a) True
b) False

Answer 5

b) False

Question 6

6) ____A sponge can pump 20x its volume of water in under a minute.

a) True
b) False

Answer 6

a) True

Question 7

7) ____Sponges defend themselves through tiny glass needles called “spicules”

a) True
b) False

Answer 7

a) True

Question 8

8.Flagellum pulls in water

A) Amebocyte
B) Collar Cell

Answer 8

B) Collar Cell

Question 9

9. Digests food

A) Amebocyte
B) Collar Cell

Answer 9

A) Amebocyte

Question 10

10. Filters Food

A) Amebocyte
B) Collar Cell

Answer 10

B) Collar Cell

Question 11

11.Removes waste

A) Amebocyte
B) Collar Cell

Answer 11

B) Collar Cell

Question 12

12. Males release sperm into the water.

A) Sexual
B) Asexual

Answer 12

A) Sexual

Question 13

13. Wave and currents carry away larvae.

A) Sexual
B) Asexual

Answer 13

A) Sexual

Question 14

14. The side of an existing sponge produces a small bud.

A) Sexual
B) Asexual

Answer 14

B) Asexual

Question 15

15. A bud lands on a rocky substrate and begins to grow.

A) Sexual
B) Asexual

Answer 15

B) Asexual

Question 16

16. A female grows larvae in her epithelium.

A) Sexual
B) Asexual

Answer 16

A) Sexual

Question 17

17. Waves and currents carry away small budded sponges.

A) Sexual
B) Asexual

Answer 17

A) Sexual

Question 18

18. Colonies of individual organisms that act as organs.

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 18

A. Siphonophores

Question 19

19. Calcium Carbonate Skeletons

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 19

C. Hard Coral

Question 20

20. Another Name for “Sea Fans”

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 20

B. Soft Coral

Question 21

21. Protein Skeletons, Not Calcium Carbonate

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 21

B. Soft Coral

Question 22

22. Cleaned and fed by friendly species of fish.

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 22

D. Anemones

Question 22

23. Able to build islands.

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 22

C. Hard Coral

Question 23

24. Sometimes mistaken for plastic bags by predators.

A. Siphonophores
B. Soft Coral
C. Hard Coral
D. Anemones
E. Jellyfish

Answer 23

E. Jellyfish

Question 24

25. Classified as “Neuston” A. Siphonophores B. Soft Coral C. Hard Coral D. Anemones E. Jellyfish

Answer 24

E. Jellyfish

Question 25

26. Can grow up to 100 meters long. A. Siphonophores B. Soft Coral C. Hard Coral D. Anemones E. Jellyfish

Answer 25

A. Siphonophores

Question 26

27. Protects friendly species of fish A. Siphonophores B. Soft Coral C. Hard Coral D. Anemones E. Jellyfish

Answer 26

D. Anemones

Question 27

28. Explain how comb jellies are able to swim through the water.

Answer 27

It uses 100’s of cilia at the same time to swim through the water.

Question 28

Explain exactly why fire corals are called “The Immortal Jellyfish.”

Answer 28

There is a continuous cycle of reproduction where the coral produces the medusa and then the medusa produces more coral.

Question 29

Detail the process that sponges use to filter feed.

Answer 29

Pores on the outside of the sponge take in water, filter out their food and release the waste from the top.

Question 30

How do anemone and coral polyps feed on prey?

Answer 30

They use stingers to paralyze the prey and the tentacles move the food to their mouth.

Question 31

What two methods do sponges use to protect themselves from predators?

Answer 31

1. Toxic mucus 2. Spicules

Question 32

What is Coral Bleaching? What effect does it have on the World Ocean?

Answer 32

It is a stress response from environmental changes. The effect is dangerous to the World Ocean. Since Coral is the habitat to so many different organisms, if it dies, the organisms living there have to either move or they will die if they can’t adapt.