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Study Questions 1. Ecdysone and T3 are chemically very different and are found in different phyla. Yet they play similar biological roles. How are they similar?
2. How is the character of a molt (larval or pupal) regulated in holometabolous insects?
3. Speculate on how the same hormone, T3, could cause muscle cell apoptosis in the tail and muscle cell growth and differentiation in the limb of the tadpole.
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