<span>A substance that is capable of acting as both an acid and a base is called
amphoteric</span>
Answer:
he siad no and no
Explanation:
and no no no no no no non on o no no no no thank u for the points
Operant conditioning, also known as instrumental conditioning, is a method of learning normally attributed to B.F. Skinner, where the consequences of a response determine the probability of it being repeated. Through operant conditioning behavior which is reinforced (rewarded) will likely be repeated, and behavior which is punished will occur less frequently.
Answer:
1. Purines
2. States that DNA composition varies among species
3. Hydrogen Bond
4. Purines
<em>Answer to #2 is a little iffy </em>-- sorry
Explanation:
Pyrmidines have two rings
Purines have one ring
Complementary bases are connected by hydrogen bonds.