CLASS 6 · LEARNING KNOWLEDGE
Insects and development – basic principles
How it works
Insects are invertebrate animals with a segmented body (head, thorax and abdomen), three pairs of legs and often wings. They belong to the arthropods. Many insects develop through metamorphosis: in complete metamorphosis via egg – larva – pupa – imago, and in incomplete metamorphosis via egg – nymph – imago. Insects have important ecological roles, for example as pollinators, decomposers or food for other animals. Their life cycles and adaptations are diverse.
Note
Insects have a segmented body and three pairs of legs; many adult insects have wings. Their development can proceed as complete metamorphosis (egg – larva – pupa – imago) or as incomplete metamorphosis (egg – nymph – imago).
Insects have a segmented body and three pairs of legs; many adult insects have wings. Their development can proceed as complete metamorphosis (egg – larva – pupa – imago) or as incomplete metamorphosis (egg – nymph – imago).
An example
Which of the following statements best describes complete metamorphosis in insects?
Complete metamorphosis includes the stages egg, larva, pupa and imago. The correct answer is therefore: 'The development proceeds via egg, larva, pupa and adult animal.'
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50 Exercises
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: Biology. The topic assignment may vary by federal state.