It's a covalent bond. The two atoms connected are oxygen and hydrogen. Neither one is a metal of any kind
The nitrogen atoms begin to spread apart and move faster.
Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine (Figure 3). ... (Remember, DNA is almost always in a double-stranded helical form.)
The answer is 18. Good luck.
Answer:
badddd just look at NASA's 20-year time-lapse shows how Earth is changing
Explanation:
