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REY [17]
2 years ago
9

Please help will give brainist! (multiple choice question , one answer.)

Biology
1 answer:
yanalaym [24]2 years ago
5 0

Answer:

D i belive, if i'm worng, please don't be mean about it

Explanation:

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Answer:in culture plates cell density of the edges is often more than the center of the dish,

what causes this distribution?

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2 years ago
What is the sequence of travel by an impulse through the cardiac conduction system?
adoni [48]

The sequence of impulse through the cardiac conduction system starts from SA node passes to AV node to atrioventricular bundle fibers and finally to Purkinje fibers.

Heart is an organ that receives oxygenated blood form lungs and deoxygenated blood from different parts of body. Oxygenated blood is transported to different organs and deoxygenated blood is transported to lungs for oxygenation.

Now, to perform this transportation, the auricles and ventricles of heart contract and relax. In order to contract and relax, impulse generation is required, which begins at SA node or Sinoatrial node. It is also referred to as pacemaker of the heart. SA node contracts the atria and the impulse transfers to AV node or Atrioventricular node.

This is followed by transfer of impulse to atrioventricular bundle fibers which further passes it on to Purkinje fibres for ventricular contraction. Now the blood is sent to lungs and aorta as per it's oxygen status.

Learn more about cardiac conduction system -

brainly.com/question/2813924

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4 0
2 years ago
Approximately _____ of all traffic deaths occur within 25 miles of the home.
IRISSAK [1]
I personally would say 15% due to the fact that most traffic accidents occur more further from home
5 0
3 years ago
5. Which of the following is a pattern of motion in the solar system? (1 point)
Sphinxa [80]

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Explanation: It’s the only true pattern listed there.

3 0
2 years ago
Which kingdom(s) include organisms that are autotrophic or heterotrophic?
Rudiy27
<span>Protista and Eubacteria so the last one.</span>
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