Which of the following affects the rate of the chemical reaction caused by an enzyme? A. temperature
B. pH
C. concentration of ions
D. All of these choices are correct.

Which of the following is a question of morality? a.) delierately reporting false data b.) accidentally reporting false data c.) kepping a sloppy record of experimental observation d.) condition a drug experiment which will harm a lab rats

Approximately what wavelength of light is best absorbed by chlorophyll a

The (blank) states that all loving things are made of cells.