The release of histamines does not cause infection in the affected area. It is the bacterias which are the ones responsible for infections, for illnesses such as strep throat, urinary tract infections and tuberculosis.
The statement which correctly describes natural selection is (1) it favors the survival of certain members of the species and results in a change in the proportion of individuals with highly <span>adaptive traits.
Natural selection, by definition talks about the successful passing down of genes from older generations to younger generations. These then are better adapted to their environment. This is exactly what the first answer is about. </span>
<span>The human impact on biological diversity. How
species adapt to urban challenges sheds light on evolution and provides
clues about conservation</span>
