Leeches are members of the phylum in the clade of bilaterally symmetric animals called

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Give an example of a trait that is controlled by more than one gene.

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