Answer:
Many of the elements of mental health are needed for everyday life. One aspect is having poise under pressure. It is also important to be able to deal with adversity and experience new situations. Lastly, sports help participants build their self-esteem.
Hm, I thought it would be 0%. . . Since the male (hetero) would be Bb and the female (homo dominant) would be BB, So the dominant gene would be dominant over all of the recessive genes. (BB, BB, BB, Bb).
The immune system, and the excretory system
(Honestly, all of them work to keep us 'healthy', but I believe these are the ones you're looking for)
Answer;
DNA replication is semi-conservative.
The meselson-stahl experiment supported the hypothesis that DNA replication is semi-conservative.
Explanation;
The Meselson-Stahl experiment was an experiment by Meselson and Stahl that proved that the semi-conservative model by Watson and Crick was correct.
DNA replication is semi-conservative in the sense that the new helices formed after replication contain, one new DNA strand and one old strand from the parent DNA molecule.