Help with a question, insect metamorphosis [not complicated]?
I need help on my biology. I understand how both complete and incomplete insect metamorphosis occurs/works. But could someone please explain to me how metamorphosis contributes to the success of insects? I'm not very clear on that.
- Anonymous1 decade agoFavorite Answer
Insects - Metamorphosis
Metamorphosis refers to the way that insects develop, grow, and change form. Metamorphosis actually means "change". There are two types of metamorphosis--incomplete and complete.
About 12% of all insects go through incomplete metamorphosis. Incomplete metamorphosis has 3 stages.
Egg - A female insect lays eggs. These eggs are often covered by an egg case which protects the eggs and holds them together.
Nymph - The eggs hatch into nymphs. Nymphs looks like small adults, but usually don't have wings. Insect nymphs eat the same food that the adult insect eats. Nymphs shed or molt their exoskeletons (outer casings made up of a hard substance called chitin) and replace them with larger ones several times as they grow. Most nymphs molt 4-8 times.
Adult - The insects stop molting when they reach their adult size. By this time, they have also grown wings.
About 88% of all insects go through complete metamorphosis. Complete metamorphosis has 4 stages:
Egg - A female insects lays eggs.
Larva - Larvae hatch from the eggs. They do not look like adult insects. They usually have a worm-like shape. Caterpillers, maggots, and grubs are all just the larval stages of insects. Larvae molt their skin several times and they grow slightly larger.
Pupa - Larvae make cocoons around themselves. Larvae don't eat while they're inside their cocoons. Their bodies develop into an adult shape with wings, legs, internal organs, etc. This change takes anywhere from 4 days to many months.
Adult - Inside the cocoon, the larvae change into adults. After a period of time, the adult breaks out of the cocoon