The heartbeat we notice in our chest allows the blood to reach all parts of the body.

True

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False

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Solution

The correct option is A True
The heart expands and contracts to push blood throughout the body. The specialised muscles in the heart allow the pumping action to take place throughout a human's life. It is also known as a heartbeat.
This heartbeat is a very important property that keeps humans alive.

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Q. The biology teacher taught the that if we notice the movement of chest while breathing, our chest broadens and move outwards while we inhale oxygen and it relaxes and move inwards while we exhale carbon dioxide. Where does this carbon dioxide in our body come from?

Blood transports oxygen to all the parts of our body.

Regarding the assertion and reason, choose the correct option.

Assertion[A]: We feel tired and sleepy after a huge meal.

Reason[R]: Huge amount of blood rushes to supply our gut during digestion, therefore there is not enough blood reaching other parts to energize our body.

Regarding the assertion and reason, choose the correct option ______.

Assertion[A]: We feel tired and sleepy after a huge meal.

Reason[R]: Huge amount of blood rushes to supply our gut during digestion, therefore there is not enough blood reaching other parts to energize your body

Aditya was awed to know the different components of blood. He asked the doctor, “How does blood reach different parts of the body?” The doctor replied that within our body there are ‘specialised’ tube-like structures which channelise the flow of blood and take them to different parts of the body. They are known as:

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The heartbeat we notice in our chest allows the blood to reach all parts of the body.

The correct option is A TrueThe heart expands and contracts to push blood throughout the body. The specialised muscles in the heart allow the pumping action to take place throughout a human's life. It is also known as a heartbeat. This heartbeat is a very important property that keeps humans alive.