If two organisms have different traits, then they probably

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

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.

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?