The respiratory center which determines the breathing rate is located in the

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.

Moving down the ramp from 6 meters to

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water