1 / 11

Animal Life Cycles

Animal Life Cycles. 7-14-10. 9-18-10. 11-1-11. Life Cycles. General Life Cycle : Beginning of life Growth and Development Reproduction Death ***Through reproduction , the cycle can begin again. ***Death can happen at anytime. Complete Metamorphosis.

miracle
Download Presentation

Animal Life Cycles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Animal Life Cycles 7-14-10 9-18-10 11-1-11

  2. Life Cycles • General Life Cycle: • Beginning of life • Growth and Development • Reproduction • Death ***Through reproduction, the cycle can begin again. ***Death can happen at anytime.

  3. Complete Metamorphosis • In complete metamorphosis, the young DOES NOT resemble the adult. • Metamorphosis- A process of changes in form during an animal’s development • Most insects go through complete metamorphosis. • Complete Metamorphosis Insects: • butterflies, silkworms, mealworms, ladybugs

  4. Complete Metamorphosis ELPA will help ya remember complete metamorphosis: 1. Egg (laid by female animal) 2. Larva (worm-like, doesn’t resemble adult) 3. Pupa (the body changes form here) 4. Adult (fully-grown animal)

  5. Butterfly Life Cycle Egg beginning of life Larva Growth and Development Adult Reproduction Caterpillar Growth and Development Pupa Growth and Development

  6. What About Frogs? • Frogs also go through complete metamorphosis, but it’s different from ELPA. • Frog life cycle stages: • Egg • Tadpole (lives in water, breathes with gills) • Legs and lungs develop, tail and gills absorbed into body • Adult Frog (lives on land)

  7. Incomplete Metamorphosis • A few insects (about 10%) go through incomplete metamorphosis. • In this type of life cycle, the young resembles the adult. • Incomplete Metamorphosis Insects: • crickets, grasshoppers

  8. Incomplete Metamorphosis • Incomplete Metamorphosis stages • Egg (beginning of life) • Nymph (growth and development) • Adult (reproduction can happen) ***Death can happen anytime. • Think ENA, ELPA’s cousin.

  9. Complete or Incomplete? • BIG CHANGE!!!!!! • The young DOES NOT resemble the adult. • The young looks like a worm. • About 90% of insects. • 4 stages (egg, larva, pupa, adult) • Insects change during pupa stage. • NOT SO BIG CHANGE!!!! • The young DOES resemble the adult. • The young looks like the adult, except it doesn’t have wings. • Only about 10% of insects. • 3 stages (egg, nymph, adult) • Insects change by molting, or shedding exoskeleton. Complete Metamorphosis Incomplete Metamorphosis

  10. What About Everybody Else? • All animals follow the general life cycle pattern. • Reptiles, birds, and fish begin the life cycle as an egg. • Mammals begin the life cycle with live birth.

More Related