Answer:
The statement which is correct is
<em>The evolutionary fitness associated with the heritable trait of DDT resistance changed once DDT use became widespread.</em>
Explanation:
In the 1930's, the usage if insecticides was minimal. Hence, the genes for DDT resistance were absent or silent in the fruit flies at that time.
In the 1960's, the DDT resistant forms of fruit fly began occurring at this rate because they were better adapted to survive. According to Darwin, the species which are better able to adapt to the environment survive and are able to reproduce. Hence, with the passage of time the resistant forms of fruit fly will keep reproducing and increase in number.
Answer:
A. Mammal
Explanation:
We are a mammal because we have hair, we produce milk, give birth to live offspring (kids), and we are warm blooded.
The part of the phospholipid bilayer that interacts with water would be the hydrophilic portion consisting of the polar phosphate group. The hydrophobic tails which are the fatty acid chains will not interact with the water present in the aqueous environment.
No it would not if the reason or cause of death is already known.
The next step that should be done after the manner death has been identified is : Figuring out the cause of death
In the manner of death, we already know either the occurrence was caused by murder or suicide, the next one is to find out 'how'
hope this helps
