A caterpillar and a pupa are both soft without exoskeletons
A caterpillar is in the Larva stage. When it goes into it's cocoon it will be in the pupa stage. When it hatches, it will become a butterfly (and therefore be in the adult stage)
Larvae turn into adults through the process of metamorphosis. This process starts after a larva turns into a pupa. It then emerges from the pupal stage in its adult form.
When an insect has gone through metamorphosis, it has completely changed its form. If it had a pupal stage before metamorphosis, then it underwent complete metamorphosis. If it didn't have a pupal stage, then it underwent incomplete metamorphosis.
That's the pupal stage-the caterpillar undergoes metamorphosis and adult butterfly emerges.
No, mosquito doesn't goes through complete metamorphosis they pass through incomplete metamorphosis as because their is no pupa stage in it's lifecycle.
Cockroaches go through complete metamorphosis.
Grasshoppers do not go through a pupal stage. Insects fall into two major groups, holometabolous (complete metamorphosis: pupal stage) and hemimetabolous (incomplete metamorphosis: no pupal stage). Grasshoppers are hemimetabolous, like crickets, mayflies, stinkbugs, etc., and insects that undergoe incomplete metamorphosis do not have a pupal stage. Holometabolous insects such as flies, butterflies, beetles, wasps, etc. do undergoe complete metamorphosis and they all have a pupal stage.
Because the caterpillar is an intermediate stage of the development. It will go through something called metamorphosis after which it will look like its parents. Think of the caterpillar like a sort of mobile egg, which doesn't look much like its parents either.
The larval form of a butterfly is properly called a caterpillar. When the caterpillar enters the pupae stage, it will form a chrysalis around itself for protection during metamorphosis.
They do go through complete metamorphosis because they have a fast eating larva stage and a stage where they cocoon themselves in something to change themselves.
An adult butterfly is called just that. In the larva stage it is called a caterpillar. The process is called metamorphosis.
It is false that the chrysalis appears during the first stage of metamorphosis. It shows during the second stage, which is the pupal stage. When a caterpillar is fully grown and the skin comes off for one last time, the hard skin under the old one is the chyrsalis.