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Insects

A class of hexapods that possess three body segments, six legs and make up half of the living animals on earth.

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Vocabulary

aggregate

Cluster of adult insects formed during hibernation; seen in ladybugs.

cocoon

A pupal casing made by moth caterpillars and other insect larvae.

compound eye

Eye characteristic of insects; consists of thousands of individual photoreceptor units.

Hexapoda

Arthropod subphylum; named for their distinctive thorax with three pairs of legs; includes insects.

mandible

The lower jaw or jawbone in vertebrates; in insects, a pair of appendages near the insect’s mouth.

maxillae

Paired structures present on the head as mouthparts; used for tasting and manipulating food.

pheromone

A secreted or excreted chemical factor that triggers a social response in members of the same species; used by some species for communication.

pupa

Life cycle stage of many insects; occurs between the larval and adult stages and during which the insect is immobile, may be encased within a cocoon, and changes into the adult form.

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