ENTM 10 Lec.5 Growth & Metamorphosis

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Last updated 5:41 PM on 1/22/25
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9 Terms

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What is the top layer on an insect?

Epicuticle

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What is the middle layer on an insect?

Cuticle

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What is the bottom layer on an insect?

Epidermis

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Metamorphosis

A change in form during development

e.g. - egg to caterpillar

- caterpillar to pupa

- pupa to adult

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Ametabolous Insects: Ametabolism

 egg→nymph → nymph → nymph  → adult (sexually mature & active)

• Apterygota: no wings

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Hemimetabolism or Incomplete Metamorphosis

• egg→nymph → nymph → nymph → adult (sexually  mature & active)

• Wing pads present in  juveniles, wings in adults

• Juveniles are called nymphs

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 Stadium:

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Diapause:

A period of arrested development, often in the pupal