Which of these elements has an oxidation state of -1?

a. hydrogren

b. chlorine

c. boron

d. neon

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Is there any solid scientific evidence that humans have been cloned?

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance