Answer:
1. life cycle, in biology, the series of changes that the members of a species undergo as they pass from the beginning of a given developmental stage to the inception of that same developmental stage in a subsequent generation.
2. Complete Metamorphosis: Complete metamorphosis refers to a type of insect development whose egg, larva, pupal, and adult stages differ greatly in morphology.
3. Incomplete metamorphosis refers to a type of insect development in which gradual changes occur in the insect during the development from the egg to the adult. The three stages of the incomplete metamorphosis are egg, nymph, and adult. The eggs are laid by the female insect.
4. Larva the immature, wingless, and often wormlike feeding form that hatches from the egg of many insects, alters chiefly in size while passing through several molts, and is finally transformed into a pupa or chrysalis (see chrysalis sense 1a) from which the adult emerges.
5. Pupa an intermediate usually quiescent stage of a metamorphic insect (such as a bee, moth, or beetle) that occurs between the larva and the imago, is usually enclosed in a cocoon or protective covering, and undergoes internal changes by which larval structures are replaced by those typical of the imago or image.
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