Which of the following is a specialist species? a. giant pandas b. horses c. humans d. rabbits

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

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

What is an example of a scientific question that galileo could not have answered with out this new tool?