How do absorbed food molecules travel to the rest of the body?

An easy way to calculate the amount of energy available at each level is to what?

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment