Answer:
there are so types of particle which have to get danger so
The cell membrane<span> is selectively permeable to ions and organic molecules and controls the movement of substances in and out of </span>cells<span>. The basic </span>function<span> of the </span>cell membrane<span> is to protect the </span>cell<span> from its surroundings. It consists of the lipid bilayer with embedded proteins.</span>
Tolerance
When you do anything (especially drugs) you need to do more and more of it to get the same sensation you did when first doing it.
Answer:
A series of rivers originates in the mountains and flows towards the Pacific Ocean on the west coast, and towards the Gulf of Mexico in the southern Petén lowlands.
Explanation:
Most of the Maya cities of the Classic period were built near rivers that provided water for human consumption and access to trade routes.
