arthropods

Question 1

invertebrate animal having an exoskeleton, a segmented body, and jointed appendages

Answer 1

Arthropod

Question 2

shed periodically part or all of a coat or an outer covering

Answer 2

Molting

Question 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

Answer 3

Pheromones

Question 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

Answer 4

Thorax

Question 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

Answer 5

Abdomen

Question 6

the fused head and thorax of spiders and other chelicerate arthropods

Answer 6

Cephalothorax

Question 7

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

Answer 7

Exoskeleton

Question 8

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

Answer 8

Cheliped

Question 9

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

Answer 9

Malpighean tubes

Question 10

class of joint-legged invertebrate animals

Answer 10

Arachnid

Question 11

an eight-legged predatory arachnid with an unsegmented body consisting of a fused head and thorax and a rounded abdomen

Answer 11

Spiders

Question 12

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

Answer 12

Metamorphosis

Question 13

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

Answer 13

Crustaceans

Question 14

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

Answer 14

Insects

Question 15

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

Answer 15

Antennae

Question 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

Answer 16

Scorpions

Question 17

any of the small paired appendages on the abdomen of crustaceans, used chiefly in locomotion and reproduction

Answer 17

Swimmerets

Question 18

one of a pair of glands near the base of the large antennae

Answer 18

Green glands

Question 19

A North American tick which infests wild and domestic animals

Answer 19

Woodtick

Question 20

a plant-eating insect with long hind legs that are used for jumping and for producing a chirping sound

Answer 20

Grasshopper

Question 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

Answer 21

Butterfly

Question 22

a common small fly occurring worldwide in and around human habitation

Answer 22

Housefly

Question 23

a slender long-legged fly with aquatic larvae can cause diseases

Answer 23

Mosquito

Question 24

a crustacean with a broad carapace, stalked eyes, and five pairs of legs

Answer 24

Crab

Question 25

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

Answer 25

Lobster