<span>The important function of cells in the eyes involve vision. This is the function of the choroid that contains pigment cells that absorbs light to prevent reflection that could impair vision. The retina, the innermost layer of the eye contains the light sensitive cells called rods and cones. </span>
The charge of the electrical impulses sent from stimuli is extremely positive. Thus, the correct option is A. The net charge of such electrical impulses is positive because of the positively charged ions of the Na+.
<h3>What is an electrical impulse?</h3>
An electrical impulse may be defined as a nerve impulse that contains an electrical signal which travels throughout the body by the axon terminal.
In the resting potential state, the potential difference is -80mV, while after reaching the electrical impulse it changes to +40mV. This happens due to an electrical imbalance between sodium and potassium influx and efflux.
Therefore, the correct option is A.
To learn more about Electrical impulses, refer to the link:
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yes when a earthquake is greator than 6 is close nearby
Explanation:
Hello!
In order to find the answer, we must go from feet to inches to centimeters.
There are exactly 12 inches in a foot, and we begin with 18 feet. In order to convert 18 feet to inches, we must multiply 12 by 18 (inches in a foot times the amount of feet we begin with):
12x18=216in
Now, we are down to 216 inches. There are 2.54 centimeters in an inch. We must now multiply 2.54 by 216 (amount of centimeters in an inch times the total amount of inches).
2.54x216=548.64
The answer to your question is 548.64cm.
I hope this helps you! Have a great day!