Answer:
hereditary variat on selection is made of those genetic variats that well be passed on most effectively to the following generation
Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate. The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate. Such factors as stress, caffeine, and excitement may temporarily accelerate your heart rate, while meditating or taking slow, deep breaths may help to slow your heart rate.
Cold air creates high pressure low pressure is created by hot/warm air La Nina creates cooler temperature then el nino
A.The way plant pollen is carried by wind to another plant.
