In an ecosystem, why can only one species fill an ecological niche? (Site 2)

2 answers:

7 0

In ecology, a niche is a term describing the relational position of a species or population in an ecosystem. ... According to the competitive exclusion principle, no two species can occupy the same niche in the same environment for a long time.

kenny6666 [7]3 years ago

5 0

Answer:

An ecological niche is the functional role of the species in an ecosystem. The functional roles includes how individuals of a species derive food, which kind of habitat they acquire for survival, mating seasons in which they bred. In an ecosystem, only one species fill an ecological niche this is because of competitive exclusion principle which says that two or more species having same ecological niche in the same ecosystem compete for common resources in an ecosystem. The one which is more competing and strong derives the resources better than the less competing and weaker species. Hence, in the end of the competition only one species is left filling an ecological niche.

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Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and

o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors to input sensory signals to the spinal cord and the brain are categorized based on their diameter, sizes, and nature of myelination. Based on this;

A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells

A-beta are next in diameter, myelinated and sensitive to sensation of touch.

A-delta followed in diameter, and size. They are mylinated, and sensitive to pain and temperature.

C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.

Therefore, if the speed of conduction,of action potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction) :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

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3 years ago

Many present-day animal phyla appeared suddenly in fossils formed 535-525 million years ago, during the paleozoic era of the pha

frez [133]

The correct answer is - No.

The Cambrian explosion is a term used for the big and rapid diversification of the animal species, but it is not the period in which the animal life started. The animal life started in the period between 620 and 550 million years ago, in what is known as the Vendian Period. In the Vendian Period, the first complex animal organisms appeared, started to develop and evolve, though it is not a period where there was a high diversification of the species. The later Cambrian Period provided better living conditions, and that resulted in a so called ''explosion of life'', which resulted in much more new species developing and evolving.

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3 years ago

What should a person eat if she wants the fastest supply of energy?

Paul [167]

A person should eat energy bars and they should eat energy drinks because it supplies a good amount of carbohydrates (sugar) that can quickly convert inside your body to energy.

(Some good examples of energy drinks would be the brand 'Gatorade')

I am not so sure what exact brand of energy bars to eat, but I know for a fact that each energy bar contains carbohydrates, so probably any energy bar would work. :)

↑ ↑ ↑ Hope this helps! :D

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3 years ago

Read 2 more answers

Which statements describe functions of antibodies? Select two options.

Evgen [1.6K]

Answer:

They protect the body from infectious agents.

And

They signal the immune system to destroy pathogens.

Explanation:

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