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kaheart [24]
3 years ago
11

Please Help I will reward brainliest

Biology
1 answer:
GalinKa [24]3 years ago
3 0
The largest chunks of time in the geologic record are called  EONS 
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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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2 years ago
Nearly all the mass of plants comes from well fertilized soil.<br> True or False?
babunello [35]
That is false because plants grow everywhere and I doubt anyone fertilized the Amazon rainforest


anyway ITS FALSE bro
5 0
3 years ago
Decribe the importtant role that carbon plays in liveing things
Softa [21]
Carbon is an integral part of many biological processes. Living things use carbon throughout their system. Plants need carbon to go through photosynthesis. People give off carbon through cellular respiration. Hope this was somewhat helpful
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Which of the following statements is true regarding specialization among cells?
masha68 [24]
C. Specialized cells may lose the ability to reproduce.
8 0
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How is loss of biodiversity connected to extinction of organisms?
Mariana [72]

Answer:

In an ecosystem, everything is connected. All ecosystems have some form of food chain and symbiosis. This means that animals rely on each other for life. If one animal were to die then others would be negatively affected. Overall, this means that when biodiversity is lost it becomes harder for organisms to survive. For example, pandas rely on bamboo to survive. So, when it gets cut down and destroyed the pandas also suffer. Additionally, in ecosystems, a wide variety of organisms helps other living creates have more forms of survival. This shows how important biodiversity is.

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