Metamorphosis“A developmental process that leads to

dramatic changes in shape and form.” p. 823

Insects, such as butterflies and ladybugs undergo complete metamorphosis (gross).

There are 3 distinct stages of complete metamorphosis (not counting the egg stage).

Complete Metamorphosis

(egg)

Stage 1: Larva *looks nothing like the adult insect

Stage 2: Pupa *looks closer to the adult but still not there

Stage 3: Adult◦ We don’t need to see that again…

Complete Metamorphosis (cont’d)E.L.P.A

Grasshoppers and Praying Mantids (for example)

Only 2 distinct stages (besides egg)

Incomplete Metamorphosis

(egg)

Stage 1: Nymph *Looks like a miniature adult but lacks

functional sex organs and some adult structures like wings

Stage 2: Adult *

Incomplete Metamorphosis (cont’d) E.N.A.

Complete or Incomplete???

Complete or Incomplete???

Complete or Incomplete???

Complete or Incomplete???

Complete or Incomplete???

During certain times of the life cycle, insects will molt their exoskeleton in order to accommodate more growth!

http://www.youtube.com/watch?v=Bw1MFdlmWyA

Molting

What is the same about the two metamorphoses?

Differences?

How can YOU remember which is which???

Similarities and Differences?

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