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