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Opening of floral buds into flowers, is a type of:

1. autonomic movement of variation
2. paratonic movement of growth
3. autonomic movement of growth
4. autonomic movement of locomotion

Correct answer: autonomic movement of growth

Solution

Opening of floral buds is caused by internal growth changes within the flower tissues, so it is an autonomic movement. Because it depends on growth rather than reversible turgor change, it is specifically an autonomic movement of growth.

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