Nucleotides.
ALSO you should listen to DNA by bts ❤️
Explanation; -A water molecule can act as an acid or a base even in a sample of pure water. It acts as an acid (donates H+) when it reacts with a stronger base, say sodium hydroxide.
The answer is D It’s the only one that has anything to do with a predator doing the adapting
"B. organisms that use the same resource" is destined to cause the most competition between those organisms, since resources are scarce and almost always limited.