Q. Relaxed period of heart chambers is known as

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Q. Successive cells in pericardial muscles are separated with help of junctions called as

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Q. People living at high altitudes have

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Q. While training for long distances, it is better to train at

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Q. Phagocytosis refers to

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Q. In each villus, the sugars and amino acids are diffused in

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Q. In each villus, fats is transported through

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Q. Wastes of aerobic respiration (with O₂) includes

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Q. When comparing anaerobic (without O₂) and aerobic (with O₂) respiration, the amount of energy yield

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Q. Only partial breakdown of glucose molecule (C₆H₁₂O₆) takes place in

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Q. Respiration carried out in the absence of oxygen is

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Q. Wastes of anaerobic respiration includes

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Q. In yeast, alcoholic fermentation results through

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Q. Profuse growth of algae occurs due to

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Q. Sulfur dioxide (SO₂) may be reduced in air, if

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Q. Nitrates (NO₃⁻¹) and phosphates (PO₄⁻³) reach underground water with

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Q. Loss of control of hand and feet occurs due to

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Q. If lead accumulation occurs for long in the body, the outcomes may include

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Q. Risks of flood increases if

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Q. Word 'biology' is derived from language

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