Where is water used for drinking most likely to come from? C. rivers and streams
A. reservoirs and aquifers
D. lakes and ponds
B. oceans and estuaries

Which sequence correctly shows the path of carbon dioxide during repiration?

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.

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius