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Difficulty: EasyGrowth, Development, and Metamorphosis

In organisms such as butterflies and houseflies, the life cycle consists of four distinct developmental stages: egg, larva, pupa, and adult. Which type of metamorphosis is illustrated by this life cycle?

  1. Complete metamorphosisAnswer
  2. B
    Incomplete metamorphosis
  3. C
    Ametabolous development
  4. D
    Ecdysis

Answer

Complete metamorphosis
Complete metamorphosis involves four distinct life stages: egg, larva, pupa, and adult. The presence of the pupal stage, in which profound structural transformation takes place, defines complete metamorphosis.

Step-by-Step Solution

1
Identify the developmental stages listed in the question.
The four stages are egg, larva, pupa, and adult.
The presence of a distinct, non-feeding pupal stage is the primary distinguishing feature between developmental types.
2
Classify the life cycle based on the number and structural characteristics of the stages.
Complete metamorphosis (holometabolous development).
Only complete metamorphosis incorporates a pupal stage during which larval tissues are dismantled and adult structures develop.

Key Concept

Metamorphosis in Insects
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Topics

Growth, Development, and Metamorphosis

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