Home Biology The Living World General Which of the following factors exclusively a…
Biology The Living World General Single Correct MCQ
Published on: August 13, 2026

Which of the following factors exclusively affects reproduction in seasonal breeders, both plants and animals?

A
Water
B
Temperature
C
photoperiod
D
All of these

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The correct answer is:
C

Seasonal breeders reproduce only at specific times of the year. Photoperiod (length of day and night) is the key cue.It regulates flowering in plants and mating in animals. Temperature or water may influence growth but not the timing of reproduction.

Ensures reproduction occurs under favorable conditions.

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