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morpeh [17]
3 years ago
11

Depolarization occurs because

Biology
1 answer:
Natasha2012 [34]3 years ago
8 0

Answer:

more Na+ diffuse into the cell than K+ diffuse out of it

Explanation:

When a nerve cell is stimulated, the electrical properties of the membrane are momentarily reversed. The inside of the membrane attains a positive charge of up to +40 millivolts, while the outside becomes negatively charged. Under these conditions the membrane is said to be depolarized.

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Neurons that will become part of the cerebral cortex migrate by
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Although in many regions of the brain—particularly those that give rise to nuclear cell groups—neurons migrate without the benefit of glial guides, migration along radial glial fibers is always seen in regions where cells are organized into layers, like the cerebral cortex, hippocampus, and cerebellum.

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Which organism would make a good bioindicator?
Lunna [17]
I think the answer is b.
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Whats the function of the occipital lobe
wolverine [178]

Answer:

The occipital lobe is the visual processing area of the brain. It is associated with visuospatial processing, distance and depth perception, color determination, object and face recognition, and memory formation.

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By pairing the ringing of a bell with the presentation of meat, Pavlov trained dogs to salivate to the sound of a bell even when
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Answer:

Unconditioned stimulus.

Explanation:

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3 0
3 years ago
Which of the following sources of electricity DOES NOT employ the use of turbines?
AleksandrR [38]
<h3>Answer:  A) Solar</h3>

=========================================================

Explanation:

The sources of wind, hydro, and fossil fuels all use a turbine. So we can rule out choices B,C, and D.

A turbine is basically a wheel that spins to generate motion energy into electrical energy. Think of it like one of those stationary bicycles and the bike powers up a nearby lamp (the faster you pedal, the brighter the bulb gets). Another example that's similar to a turbine would be those flashlights where you can rotate a crank to have the light come on (which is useful for when the batteries are completely dead). The windmill blades act as a giant turbine that the wind spins around. Hydroelectric turbines are spun by the falling water. Fossil fuels are burned to create very hot steam which then powers a turbine. Even nuclear power uses turbines as well. With fossil fuels and nuclear energy, the idea is to heat up a vat of water and then turn that intensely hot steam into electrical energy through a turbine.

With solar panels however, the electrical energy is converted through a process of sunlight interacting with the solar cells that <u>doesn't require a turbine</u>. This explains why you can use solar panels to power up devices such as phones or laptops without having any moving parts. All you need is  a flat set of solar panels.

There is a slight variation of solar power known as "concentrated solar power", aka "concentrated solar thermal", where solar panels are not used. Instead, a vast array of mirrors are set up to aim the suns rays at a very specific narrow area. Think of it like a magnifying glass to focus the suns rays. The place where the narrow beam hits has a very high temperature. This high temperature heats up water to turn to steam, and the process from here is effectively the same as fossil fuels or nuclear energy. So that means turbines are involved with concentrated solar power. I'm assuming your teacher is specifically referring to solar panels when they mentioned choice A.

3 0
3 years ago
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