DNA bases are attached to .

sugar molecules
both sugar and phosphate molecules
phosphate molecules

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

Dan made the table shown to describe two different relationships between animals. organism interactions relationship a relationship b one organism lives inside the organism it feeds off no organism is harmed which of the following statements is most likely correct?

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance