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Chapter 15: Section 1
Test Description: Invertebrates, simple invertebrates
Instructions: Answer all questions to get your test result.
1) Invertebrates make up what percentage of all animals?
A
85%
B
97%
C
4%
D
50%
2) Which of the following describes the body plan of a sponge?
A
bilateral symmetry
B
partial symmetry
C
radial symmetry
D
asymmetry
3) What cells do sponges have that no other animal has?
A
blood cells
B
nerve cells
C
none of the answers
D
collar cells
4) The organs of more-comples invertebrates such as the earthworm contain in a body cavity called the ___.
A
coelum
B
collar cells
C
abdominal hollow
D
gut
5) Digestion of food particles in a sponge takes place in its ___.
A
osculum
B
collar cells
C
ampulla
D
gut
6) Bath sponges have a skeleton made of a special protein called ___.
A
calcium carbonate
B
silicate
C
osculum
D
spongin
7) Sponges belong to the phylum ___.
A
Mollusca
B
Porifera
C
Cnidaria
D
Chordata
8) Trichinella spiralis, the worm that causes trichonosis, is a ___.
A
tapeworm
B
fluke
C
round worm
D
planarian
9) The body parts of some inveretebrates are contolled by indiviual groupings of nerve cells called ___.
A
spicules
B
ganglia
C
osculum
D
coeloms
10) The body parts of a jellyfish is the ___, which looks like a ball with tentacles hanging underneath.
A
ganglia
B
coeloms
C
polyp
D
medusa
*select an answer for all questions
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