Three species of mice that are similar in appearance occupy the same geographic area. One species has tan fur, one has brown fur, and the third has gray fur. Scientists predicted that the mice with brown and tan fur would be more closely related, but they discover the tan mice and the gray mice have fewer differences in their genomes than the tan mice and brown mice. Based on this information, which of the following is the most logical conclusion?
a.The gray mice do not share a common ancestor with the brown mice.
b.The tan mice do not share a common ancestor with the brown mice.
c.The tan mice and gray mice share a more recent common evolutionary ancestor than the tan mice and brown mice.
d.The gray mice and tan mice share a common evolutionary ancestor that is most likely not related to the brown mice's ancestors.
2.Which of the following is most likely to happen if a person drinks untreated water from a roadside ditch?
a. The person might develop allergies to any mold and pollen that have fallen in the water.
b. The person might contract an upper respiratory tract infection from viruses in the water.
c. The person might develop an intestinal infection from pathogens in the water.
d. The person might contract whatever strain of flu is in the community.