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69. Sponges And Porifera
Test Description: ScienceStudyGames.com
Instructions: Answer all questions to get your test result.
1) Sponges have large mouths and very small brains.
A
False
B
True
2) Sponges can only grow in one spot.
A
True
B
False
3) Sponges feed on __________
A
Fungi
B
Water
C
People
D
Bacteria
4) There are more than 20,000 species of spongers.
A
False
B
True
5) A sponge filters water through its body and gains nutrients from tiny organisms in the water.
A
False
B
True
6) Sponges can not change the shape of their body.
A
False
B
True
7) Sponges have a nervous system.
A
True
B
False
8) There are ____ classes of sponges.
A
2
B
4
C
5
D
3
9) Spongers is a special protein used to make a sponges ______
A
Head
B
Mouth
C
Feet
D
Skeleton
10) Calcarea sponges use calcium to make their skeletons.
A
False
B
True
11) Glass sponges use ________ dioxide to make their skeletons.
A
Nitrogen
B
Silicon
C
Oxygen
D
Carbon
*select an answer for all questions
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