Organic nutrients that your body needs usually in small amounts are called

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

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.

How does natural selection change thephenotypes within a population over time?