Can you please help me?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

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.

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?