In a certain population of 100 individuals, one fourth of the individuals have the genotype aa, half have the genotype aa, and one fourth have the genotype aa. one day, 10 individuals with the genotype aa leave the area and cross a river into a new habitat. which of these processes has changed the population’s gene pool?
a. nonrandom mating
b. immigration
c. emigration
d. natural selection

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

Match each symbol with its description.

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.