Which of the following about the biosphere is true? a. It only interacts with the atmosphere.
b. It includes oceans, lakes, rivers, and groundwater
c. It can be considered a global ecosystem.
d. It includes the core, mantle, and crust.

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

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.