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Class 10 · Science · Easy
→Which problem may increase in the body due to deficiency of haemoglobin?
Class 10 · Science · Medium
→Why are alveoli effective for exchange of gases?
Class 10 · Science · Easy
→Which substances are produced by anaerobic respiration in yeast?
Class 10 · Science · Medium
→Muscle cramps after hard running may be related to formation of which substance?
Class 10 · Science · Medium
→Why is aerobic respiration more beneficial than anaerobic respiration?
Class 10 · Science · Easy
→What will happen to faeces if water is not absorbed in the large intestine?
Class 10 · Science · Medium
→How does food move down the food pipe even when it may not be liquid?
Class 10 · Science · Easy
→If the number of villi decreases, which process will be affected most?
Class 10 · Science · Medium
→Why is the small intestine suitable for both digestion and absorption?
Class 10 · Science · Easy
→Bile juice has no enzyme; yet how does it help in digestion?
Class 10 · Science · Easy
→What problem can occur if mucus is deficient in the stomach?
Class 10 · Science · Medium
→What is the importance of an acidic medium in the stomach for digestion?
Class 10 · Science · Easy
→If salivary glands do not work properly, which digestion will be affected first?
Class 10 · Science · Easy
→What is the double effect of saliva on food in humans?
Class 10 · Science · Easy
→What is the main basis of difference between autotrophic and heterotrophic nutrition?
Class 10 · Science · Easy
→What is the most suitable reason for a negative starch test in a green plant kept in darkness?
Class 10 · Science · Medium
→What happens to stomata when water content in guard cells decreases?
Class 10 · Science · Easy
→The rate of photosynthesis will become very low if a plant gets light but does not get enough of which substance?
Class 10 · Science · Easy
→If a wax-like substance closes the stomata on plant leaves, what will be the first effect on photosynthesis?
Class 10 · Science · Medium
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