Explanation:
Respiration..
the act of respiring; inhalation and exhalation of air; breathing. Biology. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells, and the oxidation products, carbon dioxide and water, are given off.
The answer is A- sperm and egg. gametes are reproductive cells in mammals, so sperm and egg would be the correct.
The lateral wall of the nasal cavity is formed partly by the maxilla, partly by the ethmoid bone, and partly by the perpendicular part of the palatine bone. Further back, where the nasal cavity becomes the nasopharynx, the lateral wall is formed by the medial pterygoid plate.
The light reactions convert light energy into chemical energy in the form of ATP and the reduced electron carrier NADPH