What are three types of passive transport? what do these all have in common?

Simple diffusion, osmosis, and facilitated diffusion.

Explanation:

Simple diffusion: It is movement of molecules from an area of higher concentration to an area where lower concentration is present.

Osmosis: It is movement of water with the help of semipermeable membrane depends on its solute concentration, down its concentration gradient.

Facilitated diffusion: It is defined as the diffusion of molecules crossing the plasma membrane takes place with the help of membrane protein such as carrier, and channel proteins.

Passive transport not require any metabolic energy to transport ions. This is the common characteristic of these three passive transport examples.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

it would be rhyolitic hope this