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प्रश्न
Give biological reasons for the following statements:
The left ventricle of the heart has a thicker wall than the right ventricle.
Give reasons/explain:
The left ventricle has thicker walls than the right ventricle.
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उत्तर
The right ventricle pumps deoxygenated blood only to the lungs, while the left ventricle pumps oxygenated blood to the longest distance in the body; hence, it has thicker walls than the right ventricle.
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संबंधित प्रश्न
fill in the blanks with suitable functions: Eustachian Tube and ______
The diagram below represents the human heart in one phase of its function. Study the diagram carefully and answer the questions that follow:

(i) Name the phase.
(ii) Which part of the heart is contracting in this phase? Give a reason to support your answer.
(iii) Name the parts labelled 1 to 4.
(iv) What type of blood flows through ‘2’?
(v) State the function of the part numbered ‘5’.
(vi) Name the membrane that covers the heart.
Given below is a diagram of a human blood smear.
Study the diagram and answer the questions that follow:

a) Name the components numbered ‘1’ to ‘4’
b) Mention two structural differences between the parts ‘1’ and ‘2’.
c) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
d) What is the average lifespan of the component numbered ‘1’ ?
e) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain
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What is Diapedesis?
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True or false:
Blood group A has antigen A.
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The artificial method of filtering the blood or removing the wastes from the blood.
Which of the following correctly represents the components of blood?
