1. Vocabulary Review
Ch 36 –
Arthropods

2. A member of the phylum Arthropoda, which includes invertebrate animals such as insects, crustaceans, and arachnids; characterized by having segmented bodies and paired appendages
Arthropod

3. A structure that extends from the main body, such as a limb, tentacle, fin, or wing
Appendage

4. A carbohydrate that forms part of the exoskeleton of arthropods and other organisms, such as insects, crustaceans, fungi, and some algae
Chitin

5. An eye composed of many light detectors separated by pigment cells
Compound eye

6. The shedding of an exoskeleton, skin, feathers, or hair to be replaced by new parts
Molting

7. A member of the class Trilobita; an extinct type of arthropod that is characterized by many body segments each of which had one pair of appendages
Trilobite

8. In arthropods, a structure that is composed of several fused body segments and that is typically specialized for a specific function (plural, tagmata)
Tagma

9. In some arthropods, a jawlike mouthpart used to pierce and suck food
Mandible

10. In some arthropods, either of a pair of pincer-like appendages used to attack prey
Chelicera

11. The free-swimming larva of most crustaceans
Nauplius

12. In arthropods, one of several long, curved, hair-shaped appendages (plural, cirri)
Cirrus

13. A crustacean that has seven pairs of identical legs and no carapace; examples include sowbugs and pill bugs
Isopod

14. A crustacean that has five pairs of legs; examples include shrimp, crabs, and lobsters
Decapod

15. In arachnids and some crustaceans, the body part made up of the head and the thorax
Cephalothorax

16. In arthropods, the mid-body region
Thorax

17. A shield-like plate the covers the cephalothorax of some crustaceans and reptiles
Carapace

18. In arthropods, the posterior tagma
Abdomen

19. A feeler that is on the head of an invertebrate, such as a crustacean or an insect, and that senses touch, taste, or smell
Antenna

20. In crustaceans, a second pair of antennae, usually smaller than the first
Antennule

21. In arthropods, one of the pair of appendages that have claws
Cheliped

22. In some crustaceans, an abdominal appendage modified to allow movement, respiration, or the carrying of eggs
Swimmeret

23. The unpaired, terminal abdominal segment of crustaceans
Telson

24. A flattened posterior appendage in some crustaceans
Uropod

25. Any gland that secretes a substance to help transform food into substances that the body can use
Digestive gland

26. An excretory organ of some crustaceans that is located at the base of the antennae
Green gland

27. An arthropod that has eight legs and no wings or antennae; a spider, scorpion, mite, or tick
Arachnid

28. One of the second pair of appendages that are beside the mouth of an arachnid and that are used for chewing and handling prey
Pedipalp

29. An organ that spiders and certain insect larvae use to produce silky threads for webs and cocoons
Spinneret

30. In spiders and scorpions, an organ for respiration that has parallel folds that resemble the pages of a book
Book lung

31. In insects, myriapods, and spiders, one of a network of air tubes
Trachea

32. An external opening in an insect or arthropod, used in respiration
Spiracle

33. An excretory tube that opens into the back part of the intestine of most insects and certain arthropods
Malpighian tubule