Help please asap Directional selection differs from stabilizing selection in that:

a. Directional selection favors one extreme phenotype, whereas stabilizing selection favors intermediate over extreme phenotypes

b. Directional selection requires new mutations whereas stabilizing selection uses existing variation

c. Directional selection operates only in small populations, whereas stabilizing selection only works in large populations

d. they both do nothing, these are terms I made up while writing this retake

The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

How are primary producers important to the alligator's energy supply