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Class 10 · Science
→How are folding of Mimosa leaves on touch and coiling of a tendril around a support different?
Class 10 · Science
→What is the deeper reason behind a tendril coiling around a support?
Class 10 · Science
→On what basis is pollen-tube growth towards an ovule different from ordinary phototropism?
Class 10 · Science
→If a root grows towards water and away from light at the same time, which conclusion is correct?
Class 10 · Science
→Why can a high auxin concentration produce different effects in roots and stems?
Class 10 · Science
→A plant receives light from one side, and its stem bends towards that side. What is the most accurate role of auxin?
Class 10 · Science
→Hormones circulate in the blood throughout the body. Why do they act only on certain organs?
Class 10 · Science
→When the level of a hormone in the blood rises and its secretion decreases, which principle is illustrated?
Class 10 · Science
→If growth hormone is secreted in a very low amount during childhood, which problem becomes more likely?
Class 10 · Science
→What is the strongest reason for calling the pituitary gland the master gland?
Class 10 · Science
→What is the most accurate relationship between thyroxine deficiency and goitre?
Class 10 · Science
→If blood sugar is very high and insulin is low, the cause is most directly related to which gland?
Class 10 · Science
→In which situation is endocrine control more suitable than nervous control?
Class 10 · Science
→If adrenaline secretion increases, which change helps provide more energy to muscles?
Class 10 · Science
→In which event is the combined effect of nervous and hormonal control most clearly demonstrated?
Class 10 · Science
→Which statement most accurately shows a limitation of nervous control compared with hormonal control?
Class 10 · Science
→Contraction of the pupil in bright light demonstrates which deeper principle of coordination?
Class 10 · Science
→Which option correctly describes the functional relationship between the central and peripheral nervous systems?
Class 10 · Science
→In which situation can disturbance of the medulla be most dangerous?
Class 10 · Science
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