Living organisms obtain many of their requirements by diffusion. They also get rid of many of waste materials in this way. For example, Plants need carbon dioxide for photosynthesis. This diffuses from the air into the leaves through the stomata. It does this because there is a lower concentration of carbon dioxide inside the leaf as the cells are using it up. Outside the leaf in the air, there is a higher concentration. Carbon dioxide molecules therefore diffuse into the leaf down this concentration gradient :)
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Answer:
any process of formation or growth; development: the evolution of a language; the evolution of the airplane. a product of such development; something evolved: The exploration of space is the evolution of decades of research
Explanation:
B = the fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable give me brainest answer please
