2. natural selection is most likely to have different effects on organisms with which pair of alleles?
-aa and aa
-aa and aa
-aa and aa
-aa and aa

Describe how alleles and genes are related

Which level of taxonomy has the fewest organisms?

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.