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.
Both are organs ur body cant live without thats why when ppl shoot they aim for the heart and/or brain they are vital organs
If two recessive alleles are present the Recessive trait will be expressed.
Answer:
.....Can you please give us the topic about the human body to give you the answer?
Picture of the food web? Please? I will edit my post with the answer once you upload a picture.