Answer: best adapted to the environment
Explanation: fitness can be thought of as fit for purpose. The most fit for purpose organism is the one best adapted to its environment.
Nevertheless, all the options are characteristic of adaptation
It is not particularly useful to discuss natural selection in terms of individuals and not populations. An advantageous mutation in one individual is the theoretical starting point for a better adapted population, but adaptation happens in a population very slowly if at all if it depends on a single individual. The smaller the population, the higher the probability that the adaptation will be eliminated by chance.
Answer:
The added carbon is supplied by acetyl CoA and the 2 eliminated carbons are released as CO2.
Explanation:
TCA cycle or citric acid cycle occurs in the mitocondrial matrix.
The ist step of TCA cycle deals with the formation of citrate molecule bt the addition of Acetyl CoA with oxaloacetate. The acetyl CoA is a 2 carbon compound formed from pyruvate by the catalytic activity of pyruvate dehydrogenase .
The 2 eliminated carbons are released as carbon di oxide or CO2.The CO2 molecule is eliminated during the formation of alpha ketoglutarate from isocitrate .The second CO2 molecule is eliminated when alpha ketoglutarate is converted to succinyl CoA.