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1. 
How many subgroups of arthropods are there?
A.
There are 3 (three) subgroups: gastropods, cephalopods and bivalves.
B.
There are 4 (four) subgroups: insects, myriapods, arachnids and crustaceans.
C.
There are 3 (three) subgroups: insects, arachnids and bivalves.
2. 
What of these animals have got an exoskeleton?
A.
insects
B.
arachnids
C.
myriapods
D.
crustaceans
3. 
Which of these animals have got 2 antennae?
A.
crustaceans
B.
myriapods
C.
insects
D.
mammals
4. 
What is the name of the invertebrates that have got 2 shells?
A.
gastropods
B.
arachnids
C.
bivalves
D.
crustaceans
5. 
Which of these characteristics of insects are true?
A.
Insects have got an exoskeleton, six legs and two antennae.
B.
Most insects have got wings and can fly.
C.
Insects have a shell and a soft body. They can't fly.
D.
Insects are arthropods. They have got 3 body sections: head, thorax and abdomen.
6. 
Which of these characteristics of myriapods are true?
A.
Myriapods have got 4 legs and 2 antennae.
B.
Myriapods have got lots of body segments and lots of legs.
C.
Myriapods have got an exoskeleton and 2 antennae.
D.
Myriapods have got 2 claws.
7. 
Which of these characteristics of crustaceans are true?
A.
Crustaceans have got a thick exoskeleton and 2 claws.
B.
Most crustaceans have got wings and can fly.
C.
Crustaceans have got 4 antennae.
D.
Most crustaceans have got 8 legs.
8. 
Which of these characteristics of arachnids are true?
A.
Most arachnids have got 8 eyes.
B.
Arachnids have got 6 legs and an exoskeleton.
C.
Arachnids have got 8 legs and an exoskeleton.
D.
Arachnids have got 2 body sections: head and abdomen.