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Why is Rudolp's nose red?
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Metamorphosis Bits

By Carole Flores

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  • Adult: fully grown.
  • Complete metamorphosis: a change in body form with four stages: egg, larva, pupa, and adult.
  • Egg: a female gamete, which keeps all the parts of a cell after fusing with a sperm.
  • Exoskeleton: hard body covering... more
  • Incomplete metamorphosis: a change in body form with three stages: egg, nymph, and adult.
  • Larva: the second, "worm-like" stage in the life cycle of insects that undergo complete metamorphosis (like caterpillars).
  • Metamorphosis: dramatic change in body form... more
  • Pupa: resting stage during which tissues are reorganized from larval form to adult form. The pupa is the third body form in the life cycle of insects that undergo complete metamorphosis (like caterpillars).

Flashcard facts and information about metamorphosis

Biology Bits stories are a great way for you to learn about biology a little bit at a time. We’ve broken down information into pieces that are very tiny—bite-sized biology cards. Cutting out the cards will let you organize them however you want, or use them as flashcards while you read.

This set of bits will teach you about the set of changes insects and some other animals experience during development: metamorphosis. To learn more about the science behind metamorphosis, visit Metamorphosis: Nature's Ultimate Transformer.

Play the slide show from the beginning or pick a slide to begin with by clicking on a slide below.


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Beaver Teeth

Here are some pieces of biology that you can sink your teeth into. One bit at a time.

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.