The diagram to the right shows a planet's orbit around the Sun. At which location is the planet's orbital velocity (speed) greatest?
A
Sun

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.

What makes a dominant allele different from a recessive allele

Which of the following forest management practices is best for reestablishing areas of forest?