Answer:
It would be B
Explanation:
By doing the punnet square, you get BB, BB ,Bb, Bb, of which 50% are heterozygous.
This is called a chemical bond.
Answer:
Much change is due to random genetic drift rather than positive selection. Some are harmful and are likely to be eliminated by natural selection – by death of the embryo, for instance. ...
Answer:
Scientists mostly gain new knowledge through direct observation and applying the scientific method. They would start with a hypothesis and test it, then change it or confirm it. Others would test their confirmation from one point, while the third group would test what the second said. And so on and so forth.
Explanation: