The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called a. osmosis. b. simple diffusion. c. active transport. d. passive transport.

Does masterbation affect height growth or loss of growth hormone?

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.

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots