Insect Body Parts

Question 1

The insect body is divided into ___ major sections. What are they?

Answer 1

3 Major sections

Head, Thorax, and Abdomen

Question 2

Head

Answer 2

Eyes, antennae and mouthparts

Question 3

Thorax

Answer 3

True legs and wings

Question 4

Abdomen

Answer 4

Has important organs and structures for digestion, excretion, respiration and circulation.

Question 5

What do you call the backend, abdomen of an insect?

Answer 5

Posterior

Question 6

What do you call the front/head of an insect?

Answer 6

Anterior

Question 7

What do you call the bottom of an insect?

Answer 7

Ventral

Question 8

What do you call the top of an insect?

Answer 8

Dorsal

Question 9

Define Insect Morphology

Answer 9

The study of the forms and structures of insect bodies

Question 10

What do you call the side of an insect?

Answer 10

Lateral

Question 11

How many antenna do insects have? What do they detect?

Answer 11

Insects have 2 antennae

Used to detect:
1. Chemicals produced by plants or other foods or by other insect members of their species

2. Temperature
3. Moisture

Question 12

Insects with chewing mouthparts have a large pair of _____ that they use to cut or tear solid food

Answer 12

Mandibles

Question 13

Insects such as mosquitoes and aphid have a ______ which they use to suck liquids from a host

Answer 13

Proboscis

Question 14

Sponging Mouthparts

Answer 14

House flies, blow flies and other species have a proboscis that acts as a sponge to soak up liquids or liquefied foods

Question 15

Butterflies and moths have _______ mouthparts that collect liquids, such as nectar from flowers.

Answer 15

siphoning

Question 16

What is attached to the thorax?

Answer 16

The legs (3 pairs) and wings (0-2 pairs) are attached to the thorax

Question 17

True or False: only ADULT insects have fully-developed wings

Answer 17

True

Question 18

Flies have _____ which keep the fly balanced during flight

Answer 18

halteres

Question 19

Abdomen

Answer 19

• Made up of a series of segments
• It contains various organs of the body
• It may have special appendages on the end segments

Question 20

Where are the Prolegs found?

Answer 20

the abdomen

Question 21

Prolegs

Answer 21

• found on caterpillars and sawflies
• used for climbing and holding
• not segmented like true legs
• NOT found on ADULTs

Question 22

Which part of the body is the cerci located?

Answer 22

Abdomen

Question 23

Cerci

Answer 23

Segmented sensory organs on the end segment of abdomen (earwigs, cockroaches, crickets)

Question 24

What two parts are only on female insects?

Answer 24

Ovipositor and Stinger

Question 25

Ovipositor

Answer 25

Found only on female insects, used to lay eggs

Question 26

Stingers

Answer 26

• Found on bees, wasps and some ants
• ONLY on females
• Used for defense or subduing prey

Question 27

What are the 2 parts of an arachnid body?

Answer 27

1. Cephalothorax (fused head and thorax)

2. Abdomen: same as insects

Question 28

How many divisions does a spider have?

Answer 28

2

Question 29

Cephalothorax

Answer 29

the fused head and thorax on a spider (arachnid)