He noticed that each pigeon from each different island in the Galápagos Islands had a different type of beak. Noticing that each bird had a different beak, he connected it to the different environments of each island. He came to the conclusion that the environment of where each bird was determined how their beaks would be shaped. This lead to his theory of natural selection.
Answer:
Active transport
Explanation:
Facilitated diffusion and simple diffusion don't require any action from the cell to occur. Active transport is the only type that requires the cell to use energy.
<u>http://www.employees.csbsju.edu/ssaupe/biol121/chem_biol.htm</u>
that site should help
Osmosis is the movement of water across a membrane from an area of high water concentration to low water concentration, but from low solute concentration to high solute concentration. I'm going to assume you are talking about the water concentration in saying osmosis is correct.
