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Author Question: Circannual rhythms in birds are influenced by A) periods of food availability. B (Read 647 times)

strangeaffliction

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on: Oct 26, 2013
Circannual rhythms in birds are influenced by
A) periods of food availability.
B) reproductive readiness.
C) periods of daylight and darkness.
D) magnetic fields.
E) lunar cycles.


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Marked as best answer by Celeste on Sep 1, 2019

Celeste

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Reply #1 on: Sep 1, 2019
C


strangeaffliction

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Reply 2 on: Oct 26, 2013
Thanks for the timely response, appreciate it

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Reply 3 on: Yesterday
Wow, this really help

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