Potential energy (water in Dam) to Kinetic energy (Water flowing down to generator) to mechanical energy (Water turning generator) to magnetic energy (in airgap of the generator) to Electrical energy (in the coils of the generator) is your answer .-.
The best answer is (3).
Guard cells help regulate water loss by controlling the opening and closing of stomata which facilitates gas exchange and transpiration in plants.
Guard cells are able to control the opening and closing of stomata by changing shape. The guard cells take in potassium ions which causes water to diffuse into them by osmosis. The cells then swell and become bowed. When this happens, they bend way from each other thereby opening the stomata.
When they lose the potassium ions, water diffuses out by osmosis and the cells become flaccid and less bowed thus closing the stomata between them.
Fungus, plural fungi, any of about 99,000 known species of organisms of the kingdom Fungi, which includes the yeasts, rusts, smuts, mildews, molds, and mushrooms. ... Fungi are among the most widely distributed organisms on Earth and are of great environmental and medical importance.
Biotic: Trees. Mosses. Fungi. Mammals. Birds. Reptiles. Insects. Worms.
Abiotic: Rocks. Water. Sunlight. Soil. Minerals. Temperature.