Answer:
Bacteria play a central role
Explanation:
Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Answer:
Since albinism is an autosomal recessive trait, it means that both parents must possess the gene for it, for the albinism to occur.
Thus, David could be the father if both Rose and David are carriers(heterozygotes) for the albino allele.