Anaerobic respiration is a function that can provide energy to organisms in place of, or in the absence of oxygen, so choice D. would be accurate.
I would say individuals can adapt to change as this agrees with the theory of natural selection that in any species there are varieties and these can consist of individuals that are better adapted to the environmental conditions so they will thrive and propogate themselves and can result in a new species.
Homeostasis refer to the metabolic balance being maintained by several processes. It may include having a stable internal physiologic condition such as the blood ph or body temperature. Among the options, the best answer would be c. the villi of the small intestine would increase the absorption of nutrients from small intestine to the blood.
Hope this helps at least a little :)
Climate: is the long-term average of weather, typically averaged over a period of 30 years. D is the answer
