Which of the following factors most likely prevented adaptive radiation by mammals before the dinosaurs went extinct?
A) nocturnal vision of the original mammals
B) predation of dinosaur eggs by the original mammals
C) variation in teeth of the original mammals
D) competition for food with the dinosaurs

Question

Quizplus · Accepted Answer

The presence of dinosaurs, which dominated most ecological niches, likely limited the availability of resources and space for mammals to diversify and adapt to various environments. This competition for food and habitats would have prevented mammals from undergoing significant adaptive radiation until after the dinosaurs went extinct, allowing mammals to explore and adapt to a wide range of ecological niches.

Which of the Following Factors Most Likely Prevented Adaptive Radiation