Assuming purple is dominant, the genotypes of the parents must be Pp and pp, such that half the progeny have the dominant allele (P_) and half have the recessive phenotype (pp) 25% possibility of white-flowered plant life and 75% possibility of pink ones
The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.
The answer would be in the middle of the lake away from other skiers or swimmers in the water.
Given the choices that would be the best answer because it is the safest. When towing a skier, you need to be at a safe distance from hazards like the shoreline, swimmers, boats, and skiers. It is advisable that you distance yourselves at least twice the length of the rope you will use for towing.