Once nutrients have been broken down through the process of cellular respiration, which of the following must also happen in order for an animal cell to maintain homeostasis? A. The cell must take in sunlight.

B. The cell must remove wastes.

C. The cell must use up the energy molecules.

D. The cell must lower its operating temperature.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.