Which reason best explains why carbon is able to form macromolecules? A. carbon is a very large element

B. carbon can bond with many elements

C. carbon is found in all living things

D. carbon is found in energy storing molecules.
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Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

What is the difference between a meteoroid and a meteor?