In kidney cells, charged ions like sodium and chloride are reabsorbed from the urine against a concentration gradient. which mode of cellular transport is employed here?
a. facilitated diffusion
b. simple diffusion
c. osmosis
d. active transport

Ineed a chemical reaction takes place in which erlergy is released. arrange the reaction's characteristics in order from start to finis lower energy of reactants higher energy of products higher energy of reactants transition state sd lower energy of products

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Which is one example of a phenotypic change that is not genetic