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Life Cycles.

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Presentation on theme: "Life Cycles."— Presentation transcript:

1 Life Cycles

2 Most insects, in the adult stage, have wings.
Metamorphosis- when an organism goes through many stages to reach adulthood. Complete- ELPA Incomplete- ENA COMPLETE: egg, larva, pupa, adult INCOMPLETE: egg, nymph, adult Most insects, in the adult stage, have wings. Example: worker ants

3 Complete: Larva is very different from the adult stage in its physical characteristics Egg, Larva (worm-like state), pupa (chrysalis or cocoon state), adult Chrysalis= butterfly, Cocoon= any other insect A protective covering of a pupa that forms as a pupa changes to its adult state. Example: butterflies, mealworms, moths, etc.

4 Incomplete: After molting process (shedding outer layer of skin) more characteristics are added to appear as an adult. Egg, Nymph (baby that looks similar to adult), Adult Example: crickets, cockroaches, etc.

5 Complete or incomplete?

6 Complete or incomplete?

7 Complete or incomplete?

8 Complete or incomplete?

9 Complete or incomplete?

10 Complete or incomplete?

11 Life cycle of a FROG Egg, tadpole (has a tail), froglet (smaller tail, legs form), adult (no tail)

12 What do the arrows in a life cycle diagram represent?
Answer: the sequence of stages in the cycle **Starts as egg, becomes a larva, becomes a pupa, becomes and adult that can reproduce and lay eggs.

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