plants
gravity
solar radiation
2.communication
3.courtship
4.cooperation
I believe the answer you are looking for is flagellum
1.weather in u.s. can be affected by changes that occur thousands of kilometer away.
2.winds blowing across the pacific ocean are stronger than normal causing warm water to accumulate in western pacific and cooler water in the eastern pacific.
3. periodic warming and cooling of a huge mass of sea water can impact weather across north america.
4. short-term climate change.
5. south american ocean temperature increase by 1-7 degrees C.
6. normally cold water flowing to the south american coast are replaced by warm tropical waters.
7. normally strong trade winds blowing east to west weaken and reverse.
8. may tigger cooler & drier weather to many parts of the U.S..
9.may cause droughts in southern U.S..
10.Can trigger heavier than normal rainfall across much of the U.S..
11. Can cause severe storms in california