penaceci15
22.08.2019 •
Biology
Diffusion of oxygen and carbon dioxide across cell membranes occurs most during select one: a. ventilation b. internal respiration c. movement of air from the nose to the nasal cavity d. both a and b
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Ответ:
because during internal respiration exchange of gases takes place and during ventilation that is to inhale and exhale air exchange of gases occurs during the movement of air through whole system ..
Ответ:
Options include building dams to trap water from rivers, pumping water from the ground, and dredging for new sources of water. Each of these activities can change the timing and amount of freshwater that enters our estuaries, and natural drought cycles only make their effects worse
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