Which statement is true regarding active transport? group of answer choices substances do not require additional energy to move in and out of cells. substances can only move into cells, not out of cells. substances can only move across the cell membrane if they are water soluble. substances can move from areas of low concentration to areas of high concentration.

substances can move from areas of low concentration to areas of high concentration

Explanation:

usually substances move across their concentration gradient which is from high concentration to low concentration. Active transport can allow substances to move against their concentration gradient.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

Nerves are problay the number 1 thing in the body