Answer:Action potentials result from the depolarization of the cell membrane (the sarcolemma), which opens voltage-sensitive sodium channels; these become inactivated and the membrane is repolarized through the outward current of potassium ions.
its 'b'
Explanation:
If you’re talking about too many people I’m guessing the limitation factors would be lack of resources and that would include lack of food and space.
Answer:
The partial pressure of oxygen is high in the alveoli and low in the blood of the pulmonary capillaries
Co2 is a product in cullular respiration,
Remember that the product is the result of the process
