Hormones are chemical molecules produced by glands. vasopressin is a hormone secreted by the cells of the hypothalamus, a part of the brain. the hormone regulates homeostasis through its effect on the kidney cells. which statement is true based on this information?

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

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.

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins