<h3>Answer:</h3>
<em>LETTER </em><em>C</em>
Explanation:
MAKE ME BRAINLIEST AND FOLLOW ME
A base substitution of G:C to A:T after two rounds of replication.
Answer:
Organ level– an organ is a structure composed of at least two different tissue types that perform a specific function within the body. Examples include the brain, stomach, and liver. Complex functions begin to emerge at this level.
Explanation: