"Photosynthesis", this means plants breath in carbon dioxide and breath out Oxygen
The correct answer to this question is B. Some members of the Fugate family had a genetic condition called methemoglobinemia, that gave a blue color to their skin. The gene causing this disease is an autosomal recessive gene, so to have this condition you need to be homozygotes for this recessive gene. Gene flow was prevalent in the Fugate family since not all of the children had blue complexion, but only four of them. The three children that did not have blue complexion, had the dominant allele, probably through gene migration from another population nearby. Also, since it is easier nowadays to travel, two separate populations could meet more easily. This increases the incidence of gene flow and explains the reduction of the occurrence of the condition.
If you are talking about genetics you can try breeding the pink petunias for 3 cycles and if it stays pink it is either complete ressecive or complete dominant. However if it changes then it was an incomplete dominant.
Reason*
waters from natural sources contain minerals. these minerals can either be basic or acidic, thus changing the pH of water accordingly.
