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vladimir1956 [14]
3 years ago
12

Explain what occurs during a nerve impulse. what is saltatory conduction\

Biology
1 answer:
grigory [225]3 years ago
8 0
During a nerve impulse, <span>At the end of the axon from which the </span>impulse is coming, the membrane depolarizes, gated ion channels open, and calcium ions (Ca2+) are allowed to enter the cell. When the calcium ions rush in, a chemical called a neurotransmitter is released into the synapse. The neurotransmitter binds with receptors on the neuron. A saltatory conduction is <span>the propagation of action potentials along myelinated axons from one node of Ranvier to the next node, increasing the </span>conduction<span> velocity of action potentials.</span>
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<h3>What is a keystone species?</h3>

A keystone species is an organism whose existence defines an entire ecosystem such that them, the ecosystem would be severely affected or may not exist.

Trophic cascades are events which result in serious distortions in an ecosystem as a result of the removal or addition of a top predator.

To test for the hypothesis of keystone species and trophic cascades, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem.

Learn more about keystone species at: brainly.com/question/2044051

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because it in DNA so it would not be uracil as uracil is in RNA so instead it would be thymine (T) and u can also remember it as Apple Tree and Car Garage.

hope this helps to understand :)

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