Abody of water or air moving in a definite direction, especially through a surrounding body of water or air in which there is less movement

The answer to the question a body of water or air that moves in a definite direction through a surrounding body of water or air where in there is less movement is called “Current” as the movement of either air / water at a definite direction.

weathering is the answer.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.