Insect External Anatomy

How many legs does an insect have?

• 2 legs
• 6 legs
• 4 legs
• 8 legs

Butterflies, bees, crickets, mosquitos, and house flies have three distinct body regions and three pair of legs. They belong to what class?

• Chilopoda

• Insecta

• Arachnida

• Diploda

What percentage of animals on the Earth are insects?

• 25%
• 50%
• 75%
• 90%

Insects, spiders, crayfish, centipedes, and millipedes all have segmented bodies, paired appendages, jointed legs, and exoskeletons. They belong to what phylum?

• Arthropoda

• Platyhelminthes

• Mollusca

• Achelminthes

The insect's skeleton is called

• Exoskeleton
• Endoskeleton
• Red Skeleton
• Halloween Skeleton

Mouth parts of crickets, grasshoppers, and carnivorous insects

• chewing mouthparts

• sucking mouthparts

• sponging mouthparts

• proboscis

Letter A represents what part of the insects body?

• Abdomen

• Thorax

• Head

• Antenna

An insect with these type of mandibles most likely uses them to do what?

• Pierce

• Cutting

• Sucking

• Licking

Structure D is the

• tympanum
• trochanter
• ovipositor
• spiracle

Blank D in the diagram

• Maxilla

• Mandible

• Labium

• Labrum