allerySeasonal breeders time their reproduction by day length, that is by the:
APhotoperiod
BMetabolism
CTemperature
DRainfall
Answer & Solution
Correct answer: A. Photoperiod
1. Day length changes with the season.
2. Both plants and animals read it.
3. That cue is the photoperiod.
_Source: syllabus Biology, Chapter 1, The Living World._
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