A medium can be anything that a wave can pass through e.g the medium can be solid objects, air, water, etc.
He made a new approach when he discovered magnetism and electricity.
Answer:
They have adapted to different niches.
Explanation:
due to competition
Answer:
Osmosis
Explanation:
The osmosis is a movement from somewhere with a lower concentration of a substance to somewhere with a higher concentration of the same substance. Against the concentration gradient. It occurs through a semi permeable membrane which prevents a non desired substance cross it. Also, it's very important to biological process.