Two different organisms have anatomically similar structures that are believed to have originated from a common ancestor. the functions are different as a result of environmental circumstances. these anatomically similar structures are a) vestigial. b) mutations. d) homologous. d) tropisms.

The body of water found at number 4 on the map above is the

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Which of the following may one conclude from a map that shows the average ph value of rainfall in the u.s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u.s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u.s.