Nitrogenous bases are classified as either purines or pyrimidines. examples of purines are

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things

Describe one other person who has been called a heretic and explain how this person’s beliefs clashed with his or her society.