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