A man can survive with one kidney because a single healthy kidney can perform the functions of both: filtering blood, removing waste, balancing water and salts, and producing hormones. The remaining kidney enlarges slightly to compensate. class 10 science sample paper ...
Category: Class 10 Science
NCERT Solutions for Class 10 Science and important questions for CBSE class 10 for session 2020-2021
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In pea plants, purple flowers (PP) are dominant over white (pp). Crossing PP × pp gives F₁ as Pp, all showing purple flowers. F₁ self-crossed (Pp × Pp) produces F₂ in 3:1 ratio: 3 purple, 1 white. F₁ visible characters: All purple ...
The likely damaged part is the left hemisphere of the cerebrum, because each hemisphere controls the opposite side of the body. Damage to the left cerebrum causes paralysis on the right side. CBSE Sample Paper Class 10 Science 2025-26 class 10 science ...
(i) Alveoli are tiny air sacs in lungs where exchange of gases occurs. Oxygen diffuses into blood, and carbon dioxide diffuses out.(ii) Stomata are small pores on leaves that allow exchange of gases and water vapour. CBSE Sample Paper Class ...
Plants excrete wastes in several ways. Excess water is lost through transpiration. Oxygen from photosynthesis diffuses out through stomata. Some wastes like gums, resins, and latex are stored in old xylem or special cells. Leaves and bark shedding also remove ...