An NFL quarterback threw a football from the 50 yard line to the end zone (50 yards) it took 4.5 seconds to get to his receiver. How fast did the quarterback throw the ball?

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Which of the following would be an important part of a multi-step plan to restore the stability of the red-cockaded woodpecker's ecosystem?

What are some natural processes that represent physical and chemical changes?