Alexis is out mowing the lawn and starts to feel dehydrated. her will secrete vasopressin. if her dehydration becomes severe, her secretion of vasopressin will .

The correct answer is - the hypothalamus and pituitary gland respectively

Explanation:

Vasopressin is an antidiuretic hormone, a peptide hormone manufactured or produced by the hypothalamus.

The secretion and storage take place by the pituitary gland, this is termed as neurohypophysis.

Vasopressin causes reabsorption of water via acting on DCT of nephron during a dehydration body.

Thus, the correct answer is - hypothalamus and pitruitary gland respectively.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.