What is One reason why contaminated groundwater is very difficult to clean up

In a cladogram' when does a group of organisms branch off

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.

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