Answer:
The substance moves from low to high concentration, against the concentration gradient.
Explanation:
When molecules move from high to low concentration, it is known as Diffusion. It moves with the concentration gradient and does not require energy.
However, when molecules move from low to high concentration, it is against the concentration gradient and cannot proceed without Energy. This process is called Active transport.
Cell membrane is not thick, it is thin and semi permeable.
Answer A. If the tectonic plates continually move then they change earth’s crust constantly.
<em><u>PLATO ANSWER:</u></em><em> </em>A and C
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Answer:
D
Explanation:
Material is duplicated during Synthesis
The one on Earth’s surface is a meteorite.
The one in earth’s atmosphere is a meteoroid.
And the one in space is a meteor.
