1. Which of the following is an example of a scientific theory? A. The law of gravity

B. an explanation of how disease spreads

C. an untested hypothesis about the structure of DNA

D. E =mc2

Which of the following examples can cause gene flow between populations? a. an increase in predators to a population of zebra b. a volcanic eruption that kills half of a population of mice c. bird droppings that contain seeds from a different location d. a person that sprays a toxin on a group of mosquitoes

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.