<span>Movement of any particle or molecule from higher concentration to lower concentration is called diffusion. I hope I helped :)</span>
<span>In the sentence "Biologists recognize the following levels of cell organization: _____, the choice that correctly completes the sentence is b. cellular, tissue, organ, system, and organism. A cell is the basic unit of living organisms. The group of similar cells that work together to perform a specific job is a tissue. The group of multiple tissues joined together in the functional structure is an organ. Functionally related organs form organ systems, which all together form one organism.</span>
They Increase the surface area available for the absorption of nutrients
False you can only live for 70 days without eating protein.
