Bee hummingbird, zunzuncito or Helena hummingbird (Mellisuga helenae) is a species of hummingbird which is the world's smallest bird and the smallest known dinosaur. It is native to Cuba.
"If I heard a herd of elephants talking to one another and being together regularly, I would capture their noises. Then I would play them into the ground at a separate spot far away from the herd of elephants. I would observe the elephants' reactions while I recorded them by playing various recordings through the ground (ex. if they freeze in place when they feel the vibrations, how they react afterwards, etc.). To compare and analyze the elephants' behavior, I would record this information and repeat the procedure several times."
Behavior- The reactions of a complete live organism to internal and/or external stimuli are internally coordinated behaviors.
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Answer:
Agricultural fertilizers are one of the main human causes of eutrophication. Fertilizers, used in farming to make soil more fertile, contain nitrogen and phosphorus. The use, or overuse, of fertilizers can cause these nutrients to runoff of the farmer's field and enter waterways. Eutrophication can have serious effects, like algal blooms that block light from getting into the water and harm the plants and animals that need it. If there's enough overgrowth of algae, it can prevent oxygen from getting into the water, making it hypoxic and creating a dead zone where no organisms can survive.
The following is a list of methods that can be used to control eutrophication:
planting vegetation along streambeds to slow erosion and absorb nutrients.
controlling application amount and timing of fertilizer.
controlling runoff from feedlots.
The best, easiest, and most efficient way to prevent eutrophication is by preventing excess nutrients from reaching water bodies. This can be done in a number of ways, the simplest of which is just being aware of the chemicals and fertilizers that we are using.
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