What is fluid that flows between the cells of tissues and organs?

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked

Which describes a group of organisms that is considered a species