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Plants being at the bottom of the food chain do not require anything from humans. They are produces meaning they produce their own energy. The only way they depend on humans is to produce carbon dioxide for photosynthesis. Humans, along with every other consumer and decomposer depends on plants as the basis of all energy. example- if you remove the base of a tower the whole tower will fall, however if you remove the top of the tower the base will be unaffected.
they are epiphytes, they depend on the plant they're growing on.
top soil
Many countries are destroying the ozone. The developed nations are on top.
Competitive pressure. To get the energy that the sun provides, plants need to be able to "see" it. If another plant grows on top of the first plant, it will block the energy and the first plant will not grow as well. Natural selection would take care of the rest... those plants that can see the sun (those growing towards the sun and those that are taller) will prosper.
The Secretary General of the United Nations is probably the 'top dog'.
Most ecosystems ultimately rely on sunlight as the source of energy. Sunlight is used by plants to manufacture food. Plants are eaten by herbivores, and herbivores are in turn eaten by top-level consumers like hawks. Therefore hawks ultimately depend on sunlight for their food. At the bottom of the sea, near thermal vents, scientists have discovered new ecosystems that do not rely on sunlight, but on the chemicals and heat present at those vents as a source of energy for bacteria, which are eaten by larger organisms. The top level consumers in those ecosystems do not depend on sunlight for their food.
Most ecosystems ultimately rely on sunlight as the source of energy. Sunlight is used by plants to manufacture food. Plants are eaten by herbivores, and herbivores are in turn eaten by top-level consumers like hawks. Therefore hawks ultimately depend on sunlight for their food. At the bottom of the sea, near thermal vents, scientists have discovered new ecosystems that do not rely on sunlight, but on the chemicals and heat present at those vents as a source of energy for bacteria, which are eaten by larger organisms. The top level consumers in those ecosystems do not depend on sunlight for their food.
This depends if you are looking to purchase the nations top affordable SUV or luxury brand. If you are looking to go the affordable route, then the top brand would be the Chevrolet Tahoe.
USA was on top.
The top five oil-producing nations are:Saudi ArabiaRussiaUSAIranChina
There are no plants at the top of Mt. Everest, it is too cold for anything to grow at that altitude.
New Zealand
Some are:USChinaRussiaGermanyUKJapanBrazilFranceItalySpainIndiaAustraliaCanadaSouth KoreaIndonesiaSouth AfricaTurkeyGreeceSwedenIsreal
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Plants being at the bottom of the food chain do not require anything from humans. They are produces meaning they produce their own energy. The only way they depend on humans is to produce carbon dioxide for photosynthesis. Humans, along with every other consumer and decomposer depends on plants as the basis of all energy. example- if you remove the base of a tower the whole tower will fall, however if you remove the top of the tower the base will be unaffected.
they are epiphytes, they depend on the plant they're growing on.