Giraffe ancestor with slightly longer necks were able to reach taller food sources; these organisms survived longer and produced more offspring with the favorable variation. A. artificial selection
B. Natural Selection
C. both

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Use this new information to determine the parents’ genotypes (indicated by red arrows). then calculate the probabilities that the second male offspring will have each condition. drag one pink label to each pink target and one blue label to each blue target. then use the white labels to answer questions 1 and 2. labels can be used once, more than once, or not at all.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?