There are some autotrophs that live down at the very bottom of the ocean and use the thermal vents to make glucose without sunlight. This process is called what?

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

These are the components of the reservoirs of carbon that are exchanged in our environment.