Arthropod Vocab

Question 1

Arthropod

Answer 1

an invertebrate animal of the large phylum Arthropoda, such as an insect, spider, or crustacean.

Question 2

Molting

Answer 2

shed old feathers, hair, or skin, or an old shell, to make way for a new growth.

Question 3

Pheromones

Answer 3

a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behavior or physiology of others of its species.

Question 4

Thorax

Answer 4

the part of the body between the neck and the abdomen, including the cavity enclosed by the ribs, breastbone, and dorsal vertebrae, and containing the chief organs of circulation and respiration; the chest.

Question 5

Abdomen

Answer 5

the part of the body of a vertebrate containing the digestive organs; the belly.

Question 6

Cephalothorax

Answer 6

the fused head and thorax of spiders and other chelicerate arthropods.

Question 7

Exoskeleton

Answer 7

a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.

Question 8

Cheliped

Answer 8

one of the pair of legs that bears the large chelae in decapod crustaceans.

Question 9

Malpighian tubes

Answer 9

a tubular excretory organ, numbers of which open into the gut in insects and some other arthropods.

Question 10

Arachnid

Answer 10

an arthropod of the class Arachnida, such as a spider or scorpion.

Question 11

Spiders

Answer 11

an eight-legged predatory arachnid with an unsegmented body consisting of a fused head and thorax and a rounded abdomen. Spiders have fangs that inject poison into their prey, and most kinds spin webs in which to capture insects.

Question 12

Metamorphosis

Answer 12

the process of transformation from an immature form to an adult form in two or more distinct stages.

Question 13

Crustaceans

Answer 13

an arthropod of the large, mainly aquatic group Crustacea, such as a crab, lobster, shrimp, or barnacle.

Question 14

Insects

Answer 14

a small arthropod animal that has six legs and generally one or two pairs of wings.

Question 15

Antennae

Answer 15

either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods.

Question 16

Scorpions

Answer 16

a terrestrial arachnid with lobsterlike pincers and a poisonous sting at the end of its jointed tail, which it can hold curved over the back. Most kinds live in tropical and subtropical areas.

Question 17

Swimmerets

Answer 17

a forked swimming limb of a crustacean, five pairs of which are typically attached to the abdomen.

Question 18

Green Glands

Answer 18

an excretory function and open at the bases of the larger antennae.

Question 19

Woodtick

Answer 19

Small arachnid

Question 20

Grasshopper

Answer 20

a plant-eating insect with long hind legs that are used for jumping and for producing a chirping sound. It frequents grassy places and low vegetation.

Question 21

Butterfly

Answer 21

an insect with two pairs of large wings that are covered with tiny scales, usually brightly colored, and typically held erect when at rest. Butterflies fly by day, have clubbed or dilated antennae, and usually feed on nectar.

Question 22

House Fly

Answer 22

a common small fly occurring worldwide in and around human habitation. Its eggs are laid in decaying material, and the fly can be a health hazard due to its contamination of food.

Question 23

Mosquito

Answer 23

a slender long-legged fly with aquatic larvae. The bite of the bloodsucking female can transmit a number of serious diseases including malaria and encephalitis.

Question 24

Crab

Answer 24

a crustacean with a broad carapace, stalked eyes, and five pairs of legs, the first pair of which are modified as pincers. Crabs are abundant on many shores, especially in the tropics, where some have become adapted to life on land.

Question 25

Lobster

Answer 25

a large marine crustacean with a cylindrical body, stalked eyes, and the first of its five pairs of limbs modified as pincers.