Question

multiple-choice question scientists believe that birds share a common ancestor with _______. dogs hippos whales dinosaurs

Explanation:

Scientists have evidence (like Archaeopteryx fossils) showing birds evolved from dinosaurs. Dogs, hippos, and whales are mammals, not closely related to birds' ancestry. So the correct option is dinosaurs.

Answer:

dinosaurs (the option with "dinosaurs" text, assuming the checkbox for dinosaurs is the correct one. If we follow the multiple - choice option format as per the problem's instruction for multiple - choice questions, and since the correct answer is dinosaurs, we present it as: dinosaurs (the option labeled with "dinosaurs" among the choices, e.g., if the options are A. dogs, B. hippos, C. whales, D. dinosaurs, then the answer is D. dinosaurs))