CBSE Class Notes Online – Classnotes123
CBSE Class Notes and Question Answers Online – Classnotes123
Sexual Reproduction It is a type of reproduction in which both sexes, i.e. male and female are involved. Sex cell of one parent (male) fuses with the sex cell of …
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What is Reproduction It is the process of producing new organisms from the existing organisms of the same species. It is vital for the existence and continuity of the species. …
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The Circulatory System The circulatory system is the system of transportation in animals . It consists of your heart, blood, veins, and arteries. It carries blood to every part of …
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Double Circulation In human beings, the blood goes through the heart twice during each cycle i.e. the blood passes through the human heart two times to supply once to the …
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Excretion is the removal of waste from the body. Plants also produce waste products but very slowly and in very small amounts.They do not have any special organ for the …
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In a plant or a tree the waste that is produced during metabolism is converted to diffrent kind of substance and it is stored in the different parts of its …
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opening and closing of stomatal pore depends on Stomata The exchange of gasses needed for photosynthesis takes place through tiny openings called stomata. These are found mostly on the underside …
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Respiration is the process by which food is oxidized to release energy at cellular level. As a catabolic process, it causes biochemical oxidation of nutrients such as glucose. Respiration in …
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The cross-section of the leaf is arranged in layers from the top to the bottom as follows – Waxy Cuticle The uppermost layer is called the waxy cuticle. The cuticle …
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Diffrence Between Aerobic Respiration and Anaerobic Respiration are as follows Aerobic Respiration Anaerobic Respiration It is the process in which a large amount of energy is released in the presence …
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