Answer:
As DNA contain phosphorus in its structure in large amount, therefore, Harshey and Chase labeled DNA with radioactive phosphorus and because protein contains some amino acids which have sulfur so they labeled T2 bacteriophage protein with sulfur.
So after that they infected E.coli bacteria with radioactively labeled phages and after centrifugation, they have found that pellet which contains cells is showing the presence of radioactive phosphorus and supernatant which have T2 phage capsid protein showing the presence of radioactive sulfur.
Therefore by labeling viral protein and viral DNA they found that DNA is the genetic material not protein.
High CO2 levels cause plants to thicken their leave ,which could worsen climate change effect researchers says.
plant scientists observed that when CO2 levels increase in the atmosphere <em><u>most </u></em><em><u>plants</u></em><em><u> </u></em><em><u>do </u></em><em><u>unusual </u></em><em><u>,</u></em><em><u> they</u></em><em><u> </u></em><em><u>thicker </u></em><em><u>their</u></em><em><u> leave</u></em>
<em><u>germination</u></em><em><u> </u></em><em><u>increase</u></em><em><u> in</u></em><em><u> </u></em><em><u>high</u></em><em><u> </u></em><em><u>temperature</u></em><em><u> </u></em><em><u>up </u></em><em><u>to</u></em><em><u> the</u></em><em><u> </u></em><em><u>point</u></em>
A. Survival of the fittest and natural selection are interchangeable terms.
I am not sure but I believe it is B. Precipitation because the definition is: <span>the action or process of precipitating a substance from a solution ^-^ Hope this helps</span>
The answer is B because mitochondria supports the respiration that it need to produce.