Deoxyribose nucleic acid (dna) consists of all the following, except

except which?
deoxyribose
phosphate
ribose
nitrogen bases

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution

What is genetic variation? -(a) each individual in a population has slightly different genes. -(b) some individuals in a population have more genes than others. -(c) each population of a species has slightly different genes. -(d)some populations of a species have more genes than others.