Answer:
Facilitated diffusion and active transport both utilize proteins to transport substances across membranes. Differences between active transport and facilitated diffusion 1. Active transport requires an input of energy, usually ATP, while facilitated transport does not.
Idk its really weird because the ridges are making the quarter stand and therefore able to roll
Answer:

Explanation:
For this problem, we need to apply the formulas of constant accelerated motion.
To obtain the boat displacement we need to calculate the displacement because of the river flow and the displacement done because of the boat motor.
for the river:

for the boat:

So the final displacement is given by:

D. <span>Johannes Kepler argued that Earth was the center of the universe.
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The answer you're looking for is: reproductive success.
Hopefully this has helped! :)