PLZ HELP FAST Which base is found only in DNA?
adenine
guanine
cytosine
thymine

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Which fossil organism in whale evolution do you think was the first to live mostly in water? explain your claim with evidence and reasoning?

The diagram is represented of a part of a plant cell. identify the locations where proton concentration builds up during photosynthesis and cellular respiration