a cell adapts using natural celection in the long term
in the short term, look at this Wikipedia article.
https://en.wikipedia.org/wiki/Cellular_adaptation
I believe the answer may be commensalism. This is a relationship between two organisms where one of the organism benefits from the relationship, but the other is neither harmed nor helped.
Answer:
a. multicellular sporophytes
Explanation:
Bryophytes include all the land plants. Evolutionary studies have shown that all the bryophytes might have originated from a common green algae. A sporophyte can be described as a diploid multicellular stage which is common in all plants and algae. Hence, we can infer that the multicellular sporophyte generation was common in all bryophytes and hence can be seen even today.
I now chlorophyll is the main compound (or one of them) and I'm pretty sure chlorophyll is a protein so I'd pick "D".
