What does trophic level mean in ecosystem

1 answer:

4 0

The trophic level is a class of organisms in the food chain.
In a food chain, it starts with the sun, food chains ALWAYS starts with the Sun. The next part of the chain is the producers who use the Sun's energy. The Producers are flowers, grass, and trees. Next, comes the Primary Consumers that eat the producers, they can be grasshoppers, and rabbits. Next animal in the chain is the Secondary Consumer that eats the Primary one, they are foxes and birds. Then, the Tertiary Consumers that eat the Secondary ones, they are snakes and coyotes. And lastly are the Quaternary Consumers that are the top predators. Quaternary Consumers are Hawks, Wolves, Bears and so on.

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The equator has light closer to 90 degrees, at the poles the angle is lower than 90 degrees. Use this information and refer to t

ANTONII [103]

The temperature at tropic region is warmer than the polar temperatures due to angle of the sun.

The tropics which is located near the equator are hotter than the arctic region i.e. north and south poles because the sunlight falls directly on the tropic regions at 90 degrees while on the other hand, the sunlight falls on the poles not directly and form angle lower than 90 degrees.

The amount of solar energy in a given area is greater at the equator and tropic regions than in an equal area at the poles so that's why the temperature at tropic region is warmer than the polar temperatures.

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If a neurotransmitter attaches to a ligand-gated channel and creates a potential that causes the inside of the excitable cell me

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Answer:

If a neurotransmitter attaches to a ligand-gated channel and creates a potential that causes the inside of the excitable cell membrane to become less negative, and this potential travels only a short distance before dying out, it is considered to be a Graded or local potential

Explanation:

Graded potentials, also known as local or generator, are generated by an excitatory neurotranmitter, usually a ligan gated channel, they occur at a localized place on the cell and their potentials are smaller (from 1-50mV) and its magnitude depends on the strength of the stimulus.

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Adulthood , I believe .

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