In order for a layer of rock to be considered a formation usable for relative dating, it must be spread across a relatively large area that can be depicted on a geologic map. Why is this important?

Where in the body can you find chemoreceptors? a. on the skin and ears, to detect pressure, touch, motion, and sound b. on the retina, to detect a single photon of light c. on the skin, to detect temperature or specific chemicals d. on the tongue and in the nose, to detect taste or odor

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle

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.