What unit would you use to measure the amount of water in a lake

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

The negative impacts of nonnative species generally outweigh the positive impacts