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Biology

Biology. March 10, 2011 Mr. Hutto. Metamorphis – Life Cycle of Butterflies. Eggs are first stage They are tiny, sometimes microscopic Laid on the underside of host plant leaves Hatching predetermined by time eggs are laid. Caterpillars – the feeding stage.

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Biology

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  1. Biology March 10, 2011 Mr. Hutto

  2. Metamorphis – Life Cycle of Butterflies • Eggs are first stage • They are tiny, sometimes microscopic • Laid on the underside of host plant leaves • Hatching predetermined by time eggs are laid

  3. Caterpillars – the feeding stage • Minute, some virtually invisible to naked eye • Coloration of caterpillar is quite diverse • Job of caterpillar is to eat, eat, eat • Caterpillars must shed skin several times, each shedding called an instar • Can multiply in size more than a thousand fold • When final instar occurs, pupa emerges

  4. Pupa - the transition stage • Transformation in pupa stage is miraculous • What emerges in no way resembles the caterpillar • Complete disassembly of the cells and reassembling of cells into new form • The butterfly emerges from this stage

  5. Adult Butterfly – the reproductive stage • Upon emerging, the swollen body pumps fluid into tiny shrived up wings • Within a few hours, wings are full sized, dried, and become more rigid • Butterflies are ready to take flight • The job of the adult is to mate and lay eggs • Most live only one or two weeks All photographs courtesy of The Academy of Natural Sciences http://www.ansp.org/museum/butterflies/life_cycle.php

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