When you are frightened by something, what part of the brain directs your body to react by making your heart beat faster and increasing your blood pressure? a. cerebellum b. left hemisphere c. medulla d. right hemisphere

Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds