The four bases in DNA are: adenine, thymine, cytosine, guanine.
In RNA, thymine gets replaced by uracil.
Purine is only a name for the two bases guanine and adenine.
Answer:
B
Explanation:
the structure is their serrated teeth & the function is tearing into their prey.
Thylakoids are membrane-bounded structures that contain chlorophyll.
Answer:
Crocodiles are actually the closest living relatives to birds
D
Because most air pollution is caused by the burning of fossil fuels burned in the home
