Given an extracellular cl-concentration of 100 mm and an intracellular cl-concentration of 10 mm, what is the net direction of movement of cl-across a membrane permeable only to cl-when the membrane is at the equilibrium potential? at the equilibrium potential:

Which codon is the code for the amino acid histidine (his)?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior