Circannual Rhythms

Multiple Choice

Circannual rhythms

A) require information on changing day length.
B) are more important for birds that are year-round temperate residents than for birds that live at the equator and migrate to temperate areas to breed.
C) have shorter periods than circadian rhythms.
D) continue when animals are held under constant laboratory conditions.
E) can be disabled by lesioning the suprachiasmatic nuclei (SCN) .