Arthropods

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 of a mammal 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. In humans and other mammals, it is bounded by the diaphragm and the pelvis.

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

Malpighean 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

a change of the form or nature of a thing or person into a completely different one, by natural or supernatural means.

Question 13

Insects

Answer 13

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

Question 14

Antennae

Answer 14

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

Question 15

Scorpions

Answer 15

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 16

Swimmerets

Answer 16

another term for pleopod.

Question 17

Green glands

Answer 17

green gland one of a pair of glands (believed to have excretory functions) in some crustaceans near the base of the large antennae.

Question 18

Woodtick

Answer 18

any of several ixodid ticks: as. a : a widely distributed tick (Dermacentor andersonii) of western North America that is a vector of Rocky Mountain spotted fever. b : american dog tick.

Question 19

Grasshopper

Answer 19

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 20

Butterfly

Answer 20

(with reference to chaos theory) the phenomenon whereby a minute localized change in a complex system can have large effects elsewhere.

Question 21

Housefly

Answer 21

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 22

Crab

Answer 22

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 23

Lobster

Answer 23

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