PRESENTATION OUTLINE
I'm going to tell you about complete metamorphosis.More than 80% of insects, including flies, beetles, bees, butterflies, and moths, go through complete metamorphosis. The life cycle of an organism that undergoes complete metamorphosis consists of four stages—the egg, the larva, the pupa, and the adult. Study the drawings of these four stages in the beetle’s life cycle. Each stage of the life cycle – egg, larva, pupa, and adult – looks different from the others. Entomologists call these insects holometabolous (holo = total). The word "metamorphosis" derives from Greek μεταμόρφωσις, meaning "transformation" or "transforming".
First comes egg, the egg marks the first stage of an insect's metamorphosis. Different types of insects begin their life cycle with different types of eggs.
Second comes larva, during this stage, many body changes take place as the insect is transforming. The larvae of holometabolous insects bear no resemblance to their adult parents. Their habitats and food sources may be entirely different from the adults as well. Larvae grow and molt, usually multiple times. Some insect orders have a unique name for their larval forms: butterfly and moth larvae are caterpillars; fly larvae are maggots; and beetle larvae are grubs.Insects going through their immature stage are called larvae, and differ greatly from the adults. When the larva molts for the final time, it transforms into a pupa. The pupal stage is usually considered a resting stage, although much activity occurs internally, hidden from view.
Third comes pupa, after the reorganization is complete, the pupa molts to reveal the mature adult with functional wings.Insects then enter an inactive state called pupa, or chrysalis. Whilst inside the pupa, the insect will excrete digestive juices, to destroy much of the larva's body, leaving a few cells intact. Then finally comes, In the final stage of the metamorphosis, the insect finally breaks through the pupa emerging as a full adult, which is the next stage.
After this happens, the insect begins using their new body parts, unfolding their wings, and stretching their legs and becoming part of the world.and that's complete metamorphosis. Fun fact, Insects do not have a nose. Insects breathe through openings in the exoskeleton called spiracles! Well that's complete metamorphosis!
