Circadian rhythms ....its just behavior that is repeated over 24 hours
Answer:
The phenotypic ratio is the distribution pattern (expressed as a ratio) of the physical characteristics in the offspring obtained after a genetic cross.
<h2>HOPE IT'S HELPS YOU </h2>
Yes we never know what could happen in an eco system
B, Provide nutritional support to the embryo. It is not D, as the breasts are not part of the female reproductive system. It isn't C because during pregnancy, fetal and maternal blood do not mix. It also isn't D since women do not produce sperm.