Why are nonliving things you listed for each characteristic not living?

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 factors contribute to the effect an environmental toxin has on the human body?

When ash and dust begin to settle on the ground, they eventually become compacted by