Answer:
Threshold is a specific voltage that is needed by a neuron to generate action potential
the absolute refractory period is period in which neurons are unable to generate second action potential. And relative refractory period is interval following absolute refractory period.
Normally -70mV voltage is required to stimulate an action potential
Explanation:
The relative refractory period is the period occur shortly after the depolarization of a nerve fiber when partial repolarization has occurred and need a greater stimulus which can stimulate a second action potential.
During an action potential, sodium channels (voltage gated) open, and sodium rushes into the cell because there is more sodium outside the cell than inside and after specific time period sodium channels closed and at the same time potassium channels opens which let the positive ions (potassium ions) to goes out of the cell which makes axon negative and again ready for other action potential
The action potential generates at −70 mV which raised it to threshold potential which is above −55mV then rapidly rises to a peak potential of +40 mV and then the potential drops and overshoots to −90 mV, and the resting potential of −70 mV is reestablished.
"By far the greater part of Asia remains uncultivated, primarily because climatic and soil conditions are unfavourable. Conversely, in the best growing areas an extraordinarily intensive agriculture is practiced, made possible by irrigating the alluvial soils of the great river deltas and valleys. Of the principal crops cultivated, rice, sugarcane, and, in Central Asia, sugar beets require the most water. Legumes, root crops, and cereals other than rice can be grown even on land watered only by natural precipitation" This is from a website called https://www.britannica.com/place/Asia/Agriculture
Answer:
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1.Analyze the following text using formal analysis.
“She's a night owl.”
- d. the speaker is awake during the night.
The colonists often hid in plain sight on the sides of roads and shot at the British troops so that they would not be attacked themselves as severely. They would retreat as soon as the British would start shooting. Today, this would be called guerrilla warfare
