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Which vein brings clean blood from the lungs into the heart?

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Important Questions on Life Processes

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10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 73
Which blood vessel does not carry any carbon dioxide?
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10th CBSE
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Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 74
It has been found that people living in very high mountains have many more red corpuscles in their blood than people living in plains. Which one of the following best accounts for this phenomenon?
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10th CBSE
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Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 75
The phloem tissue in plants is responsible for the transport of:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 76
Which of the following has a three-chambered heart?
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 77
In which of the following are the largest amounts of nitrogen excreted from a mammalian body?
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 78
Which one of the following has cytoplasm but no nucleus?
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10th CBSE
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Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 79
The process of carrying food from the leaves to other parts of a plant is called:
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10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 1 - Life Processes>Multiple Choice Questions (MCQs)>Q 80
Which of the following is the only conducting tissue in non-flowering plants?