If a line graph is a straight line, then there is a very strong relationship between the variables.

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body