Metabolism is
a: a measure of the hydrogen ion concentration in a solution
b: the energy required to start a chemical reaction
c: all of the chemical reactions in an organism required to sustain life
d: a chemical reaction in which the substrates trade constituent parts

Which is an example of a population?

Explain light independent reactions

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.