Calculate rate of change for a speed of a car from 4 minutes to 8 minutes. At 4 minutes the car is 20 miles per hour. At 8 minutes it is 40 miles per hour

According to this food web which of the following would be considered primary consumers

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because