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Porifera Review
Test Description: This reviews the basic characteristics of organisms found in the phylum Porifera
Instructions: Answer all questions to get your test result.
1) What do you call the small openings covering a sponges body?
A
pores
B
holes
C
spikes
D
spores
2) Which of the following organisms is a member of the phylum Porifera?
A
Sponges
B
Sea anemones
C
starfish
D
clams
3) How do sponges get their food?
A
They absorb it through their skin
B
They use teeth
C
They filter feed food from the water as it is pulled through the pores
D
They grab it with tentacles
4) What do you call the sharp pointed structures found on some sponges?
A
spikes
B
spores
C
spicules
D
pores
5) Most sponges are hermaphrodites. What does this mean?
A
Sponges only produce eggs.
B
Sponges don't reproduce
C
Each sponge produces both eggs and sperm
D
Sponges have two heads
6) What is the simplest group of invertebrates?
A
Worms
B
Arthropods
C
Porifera (sponges)
D
Mollusks
7) How are the larvae of sponges different from adult sponges?
A
Larvae are bigger than adults
B
Larvae have spicules
C
Larvae have cilia that allow them to swim in the water.
D
Larvae do not move
8) Where do most adult sponges spend their lives?
A
Swimming
B
Attached to one spot on the ocean floor.
C
Floating near the surface.
D
Under the soil
9) What do you call an organism that produces both sperm and eggs?
A
A filter feeder
B
A spongin
C
A hermaphrodite
D
A pore
10) Describe a sponges body.
A
A hollow tube closed at the bottom, but with an opening at the top.
B
A solid tube
C
Round with many tentacles
D
Round with many legs
*select an answer for all questions
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