Could be because of natural selection(favoring a particular phenotype over the rest) or maybe genetic drift or gene flow.
Bricks might be the correct answer
Answer: The capsid is the tough shell made of protein.
Explanation: One of the most unusual aspects of virus particles is the absence of all organelles and other smaller structures. Whereas cells have many kinds of organelles, viruses consist of only two parts: a nucleic acid core made of DNA or RNA, and a tough, potective protein shell.
Answer:
The answer is A. And dang you really tricked me when you said 100 point lol
LOng term primary productivity terrestrial ecosystem increases carbondioxide in atmospheric and nitrogen desposition gases associated primarily with fossil fuel burning increasing plant growth ov re a long period of time. terrestrial primary production varies considerably across the surface of earth and among different ecosystem types.