Given the recent evidence suggesting that species change due to certain genetic variations, which of these is true? Darwin's theory of evolution was wrong.
Natural selection cannot cause evolution.
Mutation and natural selection both cause changes in a population.
Changes in a population occur abruptly as a response to the environment.

the dark variety, as they are not visible on the dark tree barks

explanation:

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation:

yes, because even though a theory has a  lot of evidence to support it, it is not always true