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Margarita [4]
3 years ago
12

WILL GIVE BRAINLIEST!!

Biology
1 answer:
Alex Ar [27]3 years ago
8 0

Answer:

I and III i hope this helps you

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What does a human neuron use to send a signal to the brain in response to a stimulus such as touch?
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Answer:

D.electrical signals and chemical neurotransmitters

Explanation:

chemical transmitters are the language that neurons use to connect eachother.

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3 years ago
The outer nucleated cytoplasmic layer of a schwann cell is the
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neurolemma is the named it is called

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When examining indentations, document examiners may apply what to help reveal the indentations? an electrostatic charge lighter
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When examining indentations, document examiners may apply ash <span>to help reveal the indentations</span>
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Why are fossil fuels considered a nonrenewable energy source?
joja [24]

Fossil fuels are considered a nonrenewable energy source because once fossil fuels are used, they are gone. So, the correct option is A.

<h3>What do you mean by Nonrenewable energy?</h3>

Nonrenewable energy may be defined as that energy that once consumed can not be replenished for millions of years.

Fossil fuels are examples of nonrenewable energy resources. The formation of fossil fuels may take over millions of years. This fuel is made naturally by the decomposition of dead and decayed organic living matter.

Therefore, the correct option for this question is A.

To learn more about Fossil fuels, refer to the link:

brainly.com/question/79954

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6 0
2 years ago
The prosthetic group of hemoglobin and myoglobin is . The organic ring component of heme is . Under normal conditions, the centr
SVEN [57.7K]

The question is incorrect. The correct question is as follows:

The prosthetic group of hemoglobin and myoglobin is _______?

The organic ring component of heme is _______?

Under normal conditions, the central atom of heme is ________?

In ________ the central iron atom is displaced 0.4 A out of the plane of the porphyrin ring system.

The central iron atom has _______ bonds: ________ to nitrogen atoms in the porphyrin, one to a _______ residue and one to oxygen.

Answer:

The hemoglobin is an important protein that transport oxygen in the body and contains the pigment that gives the red color to the red blood cells. The myoglobin protein is responsible for transport of oxygen in muscles.

The heme molecule acts as prosthetic group for both myoglobin and hemoglobin. The porphyrin ring is present in heme molecule. The iron molecule especially Fe2+ is present in heme molecule. The deoxyhemoglbin states occur when the central atom is displaced 0.4 Å. The iron central atom can form six bonds and forms four bonds with the prophyrin of nitrogen and one bond with histidine molecule. Histidine acts as a buffer fir the blood.

4 0
3 years ago
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