Answer:
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.
Explanation:
The answer is yes
The Arrector Pili, a small bundle of muscle fibers, which is attached to the follicle at the base of every hair. This muscle group is connected to the autonomic nervous system and contracts to raise the hair in response to stimuli.
Spermatogenesis is the process in witch spermatozoa are produced from male primordial germ cells by way of mitosis and meiosis.
Oogenesis is the process by which the female gametes, or ova, are created.
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