Cells need to intake things like nutrients, water, and oxygen, and they need to be able to export things like metabolic products and waste materials. No matter which direction the material is moving in, it needs to cross the cell membrane at some point.
It's 100% not B.... but other than that the organism must be provided. protozoans use flagellum (whip-like structure), amoeba use pseudopods (false feet), and cilia (hair-like structure) are used for eukaryotic cells.
Through weathering and the erosion of rocks and soil, Earth’s landscape can change drastically overtime. As a result, watersheds may disappear if the land making the watershed is worn away, and the water collected is <span>able to flow back into the river, as the area is level with the rest of the land.</span>
Answer:
a complex organic substance present in living cells, especially DNA or RNA, whose molecules consist of many nucleotides linked in a long chain.
Explanation:
Answer:
I think it is A. Antibodies
Please tell me if I am wrong
