Some examples could be Giraffes with long necks and the darkening of London's peppered moths after the industrial revolution. Direct selection is the shift of the population of one species towards a certain phenotype. -reference.com
the dominant form of the trait shows ---- if your question is from Gradpoint
Incomplete dominance produces a new heterozygous phenotype such as the purple color in this example
Corpus Callosum is a band of thick fibres which connects the hemispheres of the brain.
Fossil fuels and green house gases which burn holes in the ozone layer of the atmosphere causing global warming
