Twenty Questions
Subject:
Twenty Questions
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1. The mouth part used for biting
and grinding food

Mandible
2. The organs in spiders that
contain silk glands

Spinnerets
3. The process through which an arthropod
sheds its entire exoskeleton and makes a
larges one in its place.

Molting
4. Chemical signals used by
insects for communication

Pheromones
5. A pair of appendages in
Chelicerata that contain fangs that
are used to stab or paralyze prey.

Chelicerae
6. The group (Sub phylum) that
ticks belong to:

Chelicerata
7. The region in a crustacean where the
head and the trunk region are combined into
one long section.

Cephalothorax
8. Structures that spiders use for
respiration.

Booklungs
9. An ant belong to the class…

Insecta
10. A fossilized arthropod…

Trilobite
11. The tough, outer skeleton of an
arthropod.

Exoskeleton
12. Spiders use these to grab their
prey

Pedipalps
13. Excretes nitrogenous wastes
with these:

Malpighian tubules
14. Make up the exoskeleton

Chitin
15. Characteristics that
arthropods share:



Have an exoskeleton
Body shows segmentation
Has jointed appendages
16. Crustacea is a sub phylum
including animals like:

Shrimp, Crab, Lobster, Krill, Barnacles
17. The part of the exoskeleton of
a crustacean that covers the
cephalothorax

Carapace
18. An arthropod that has 5 pairs of legs
belong the __________ group:

Decapod
19. Crayfish swim with these and
use them during reproduction:

Swimmerets
20. Where air enters the body of
an arthropod:

Spiracles
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