The effect nervous system has on the heart rate is
Stimulation by parasympathetic nerves causes the heart rate to slow down.
The two branches of the autonomic (involuntary) nervous system regulate heart rate. The parasympathetic nervous system and the sympathetic nervous system (SNS and PNS) (PNS). To increase heart rate, the sympathetic nervous system (SNS) produces the catecholamines epinephrine and norepinephrine. The hormone acetylcholine is released by the parasympathetic nervous system (PNS) to reduce the heart rate. Your heart rate may briefly increase due to stress, coffee, and excitement, whereas it may temporarily decrease due to meditation or deep, steady breathing. Any amount of exercise will raise your heart rate, which will stay up as long as you keep exercising.
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How DNA supports the idea that life change over time is the DNA follow life history and can adopt to thinks very quick
A protein that is exposed to heat or drastic change in pH will have its structure affected. Conditions that are beyond the optimum conditions for the survival of proteins will affect their structures adversely, causing them to lose their unique three dimensional structures. This is in turn will leads to the denaturation of the proteins and the proteins will no longer be able to perform their original functions.
The place you would find the most mature sepermatozoa in a male reproductive system would be (B). in the ductus deferens and ejaculartory duct
Ecosystems can only have so many organisms living in it before the vegetation’s can’t break it all down.
