Answer:I can answer one airplanes fly by creating airflow over there wings and that creates lift
Explanation:
Answer:
(2) diffusion
Explanation:
Diffusion is a process in which molecules moves from a region of higher concentration to the region of lower concentration. In this condition, plant roots contain high concentration of nitrates than soil so nitrates moves from roots through semi-permeable to the soil by the action of diffusion until the concentration is uniform or equilibrium.
When the concentration gradient of such molecules is high on the either the cytoplasmic side or the extracellular side of the cell. When the concentration gradient is high it flows freely through the cell membrane to the other side without expanding energy.
Hope i helped!
Evolution. over time animals have evolved unique traits that make them distinct from other species.
Because in that way we keep thinking about them. How can you forget something when you're thinking about it?!
