Which is a difference between bacteria and viruses that shows that bacteria are living organisms and viruses are not? answers. com?

One group of reptiles, characterized by the fossil ark metal x

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

In what for do plants utilize nitrogen? why do they need nitrogen?