Answer:
The correct answer is- phosphorus and sulfur
Explanation:
Hershey and Chase used radioactive phosphorus and sulfur to label T2 bacteriophage. Then they infected E.coli with these bacteriophage labeled with radioactive phosphorus and sulfur.
After infection, they centrifuge the cell and found that radioactive phosphorus is present in the bottom and radioactive sulfur in supernatant . As sulfur is mostly the part of protein not DNA and is found in supernatant and phosphorus is mostly present in DNA not protein which was found in cell debris, therefore, it was proved that DNA is the genetic material.
the correct answer is A- Reproductive isolation occurred through behavioral isolation
A process of formation of a new species from an existing species is called speciation. New species may formed due to geographical or reproductive barriers which isolates the members of a population of a species to form a new species.
In the given question, speciation in In the leopard frogs occurred due to a particular or specific call given by males to the females. The courtship call lead to reproductive isolation due to change in behavior. Such type of behavioral change will help in recognizing mates of the same species and this will act as a reproductive barrier among the other related species.
The correct option is A: have a faster rate of osmosis
A cell containing many aquaporins will have a faster rate of osmosis.
Aquaporins are micro water channels within the membrane that allow for the exchange of water and other neutral molecules over the biological membranes of other organisms.
Due to the presence of Aquaporins in plants, they have a high diversity of regulation properties, localizations, and transport selectivity.
The rate of osmosis increases as the aquaporins facilitate the transfer of water at a faster rate.
If you need to learn more about osmosis click here:
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Answer: Hope this helps because i never got a crown before.
Explanation:
The population losses among honey bees are elucidated in a large body of ... The supply of healthy and affordable honey bee colonies for crop pollination clearly ... has caused dramatic declines in honey bee abundance in North America and ... discontinued in the United States because of concerns with residues in honey ...
