Q: In a grassland ecosystem, organisms of the same species eat the same food. When there is a lack of rain, which is most likely increased?
A: competition for resources
Q: Which statement best explains why a car that is rolling on a level surface will eventually come to a stop?
A: Frictional forces oppose the motion of the car.
Q: Mr. Jenkins's class is studying sex chromosomes. He tells his students that the nuclei of human cells have 22 pairs of autosomes. How many sex chromosomes does the human body have?
A: 2
Q: What is the primary reason for providing detailed, accurate records from scientific investigations?
A:
so experiments can be replicated