Base your answer(s) to the following question(s) on the diagram, which represents a unicellular organism in a watery environment. The ∆ represent molecules of a specific substance. Arrow A represents active transport. State two ways that active transport is different from diffusion. Your answer PLEASE HELP!

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?

9. the history of life on earth is recorded in

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.