The immature stages in complete and incomplete metamorphosis are called as larva and nymph, respectively.
Further Explanation:
Metamorphosis defines as the animal develops after birth physically. This involves abrupt change in the structure of the animal’s body via cell growth as well as differentiation. Certain amphibians, insects, fishes, and echinoderms undergo this process. Animals are segregated into the species which undergo complete metamorphosis or holometaboly, incomplete metamorphosis or hemimetaboly, and no metamorphosis.
Complete metamorphosis is basically a kind of development observed in insects.
It include four life phases:
• Egg
• Larva
• Pupa
• Adult
The larva is the second phase and lacks sexual maturity. In this stage , the larva begins eating and do not possess wings.
Incomplete metamorphosis refers to the developmental mode of some insects which involves three phases, the egg, nymph, and adult phase. Such groups go via gradual alterations and there is the absence of the pupal phase. Nymph is second phase and overall form already looks like an adult, except that it lacks wings. Nymph lacks maturity and undergoes many phases of development known as instars.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Metamorphosis
Keywords:
Metamorphosis, incomplete metamorphosis, complete metamorphosis, larva, nymph, sexual maturity, instars.
