Using operant conditioning, b. f. skinner showed that animals could be trained to perform complex tasks.

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods