Homeostasis is the regulation and maintenance of a stable internal environment of an organism to support life at the cellular level. (True or False)

All organisms contribute some water to the water cycle by conducting

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.

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans