Which item in the photo is a good thermal insulator, and why? O A. The plastic handle, because its electrons don't move freely
O B. Human skin, because it is made up mostly of water
O C. The metal pan, because its electrons move quite freely
O D. The cut vegetables, because they contain a lot of water

How many cells are our body made of ? ♡

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.

Match each symbol with its description.