Which is a function of the cell membrane? 1.performs photosynthesis
2.controls what enters and leaves the cell
3.produces proteins
4. provides energy to the cell

The krebs cycle is also known as the calvin cycle pyruvic acid cycle carbon - oxygen cycle citric acid cycle

Which of the following is not a technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural gas d. geothermal select the best answer from the choices provided a b c d

In order for you to hold your breath, your nervous system must send messages to your a. respiratory system b. digestive system c. heart in your cardiovascular system d. check in your muscular system