Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

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

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

What noticeable trend from this graph might be used to make a conclusion?