Answer:
Option d , speed over time - like running
Explanation:
Force is mathematical terms in defined as a product of mass of an object and it acceleration.
Acceleration is caused when speed changes over time.
Among all the given options, in option D the speed over time will cause acceleration and thus produce a force.
Force being a vector quantity required change of speed in some direction. While running , both quantity and direction can be assumed to be changing.
Thus, option D is correct.
There is no pigment in the brain, so it is in it's natural colour, grey.
Answer:
Patrick's hypothesis was "If fish eat microwaved food, then they will swim faster through the maze."
The fish that are in the control group are the fish without microwaved food.
The independent variable is the microwaved food.
The dependent variable was the time it took for the fish to swim through the maze.
Patrick's conclusion should be that the special food did not seem to make a large difference in helping the fish become faster, since 8 out of 10 fish were faster in both special food and regular food groups.
