B. are more difficult to control than point sources. This is because A. is wrong (point source), and C. is wrong, because it doesn't necessarily cost less or more to identify the sources. D. may be right, as non point sources are natural, such as snow melts or rain.
The answer is; A, B, D
Celular respiration break down carbon-based sources of energy and harness the energy is chemical bonds through ATPs, the energy currency of cells. Some ATP is spent in initiating the biochemical reactions, however, there is a net positive gain in the produced ATPs at the end of the reactions.
Answer:
Chromosomes are coiled structures made of DNA and proteins. They contain genes, which basically code for proteins. Chromosomes form after DNA replicates. In other words, chromosomes form as DNA becomes foiled during the process of prophase I, thus creating chromosomes.
Hope this helped! :)
I would tell ypu but the scientists told me to
