Answer:
Passive Transport - Taking the Easy Road
While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. It could be as simple as molecules moving freely such as osmosis or diffusion.
Water; Inorganic compound
Oxygen; Element found in water
Carbon; Element that is part of most organic compounds
Carbohydrate; Energy-rich organic compound
Hope that helped!
Answer: A semi-permeable membrane is that which only allows certain
substances to pass through.
B c a is the correct answer i think
Over dependence on a few staple foods increase the risk of famine because THE FEWER THE STAPLE CROPS THE GREATER THE DANGER TO THE FOOD SUPPLY POSED BY THE CROP FAILURE.
A staple food is a food that is consumed regularly by a community. For example, potato, pulses, rice, wheat, etc.