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Worksheets9.3 Invertebrates
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is the main characteristic of the invertebrates?
a)
They live only in water
b)
They don't have skeletons
c)
They don't have backbones
d)
They live only in land
2.
Echinoderms (starfish, sea cucumber) have endoskeleton
a)
True
b)
False
3.
Which of the following is not a group of invertebrates
a)
Sponges
b)
Mollusks
c)
Fishes
d)
Cnidarians
4.
To which group of invertebrates do octopuses belong?
a)
Arthropods
b)
Echinoderms
c)
Cnidarians
d)
Mollusks
5.
Invertebrates are the ___________ animals in the earth
a)
most abundant
b)
less abundant
6.
Insects have
a)
6 legs
b)
8 legs
c)
10 legs
d)
2 legs
7.
Arachnids have
a)
6 legs
b)
8 legs
c)
10 legs
d)
2 legs
8.
Which of the following is one kind of worm
a)
Segmented worm
b)
Wood worm
c)
Flying worm
d)
Water worm
9.
Arthropods have an _________ that protects them
a)
Exoskeleton
b)
Endoskeleton
10.
All animals that have radial symmetry live in
a)
Water
b)
Land
c)
Water and Land
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