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#1 Class 10 Science Heredity 2026 Short 3M CBSE
(a) Giving two examples, justify the statement that the sex of the offspring in all animals is not always genetically determined. (b) Differentiate between the sex chromosomes of male and female human beings.
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#2 Class 10 Science Heredity 2026 Short 3M CBSE
(a) Giving two examples, justify the statement that the sex of the offspring in all animals is not always genetically determined. (b) Differentiate between the sex chromosomes of male and female human beings.
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#3 Class 10 Science Life Processes 2026 Short 3M CBSE
Observe the following diagrams : Case P - a test tube of lime water into which air is pushed in with a piston (syringe). Case Q - a test tube of lime water into which air is blown through the mouth. Case R - a test tu...
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#4 Class 10 Science Life Processes 2026 Short 3M CBSE
Complete the pathways given below, showing the breakdown of glucose. Glucose $\xrightarrow{'A'}$ Pyruvate + Energy; then Pyruvate $\xrightarrow{\text{in yeast}}$ 'B' + 'C' + Energy; Pyruvate $\xrightarrow{\text{in mus...
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#5 Class 10 Science Life Processes 2026 Short 3M CBSE
(a) Draw a neat diagram of the human respiratory system and label its lungs, trachea, bronchi and alveoli. (b) State the roles of the following in the process of respiration : (i) Alveoli (ii) Respiratory pigments
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#6 Class 10 Science Life Processes 2026 Short 3M CBSE
(a) Draw a neat diagram of the human respiratory system and label its lungs, trachea, bronchi and alveoli. (b) State the roles of the following in the process of respiration : (i) Alveoli (ii) Respiratory pigments
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#7 Class 10 Science Our Environment 2026 Short 2M CBSE
Suggest two ways of dealing with waste generated at home.
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#8 Class 10 Science Our Environment 2026 Short 2M CBSE
Suggest two ways of dealing with waste generated at home.
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#9 Class 10 Science Our Environment 2026 Short 2M CBSE
Suggest one best way to dispose of the following wastes : (i) Kitchen waste (ii) Metallic waste (iii) Plastic bottles (iv) Sanitary waste
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#10 Class 10 Science Our Environment 2026 Short 2M CBSE
Suggest one precaution to be taken before disposing of the following : (a) Sewage from homes (b) Industrial wastes
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#11 Class 10 Science Our Environment 2026 Short 2M CBSE
Suggest one precaution to be taken before disposing of the following : (a) Sewage from homes (b) Industrial wastes
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#12 Class 10 Science Heredity 2026 Short 2M CBSE
"Variation is useful for the survival of species over time." Explain this statement with the help of an example.
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#13 Class 10 Science Heredity 2026 Short 2M CBSE
"Variation is useful for the survival of species over time." Explain this statement with the help of an example.
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#14 Class 10 Science Heredity 2026 Short 2M CBSE
Do all variations in a species have equal chances of surviving in the environment in which they find themselves ? Explain.
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#15 Class 10 Science Heredity 2026 Short 2M CBSE
Do all variations in a species have equal chances of surviving in the environment in which they find themselves ? Explain.
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#16 Class 10 Science Control and Coordination 2026 Short 2M CBSE
Electrical impulse is an excellent means to transmit information in the animal body, but there are some limitations to the use of electrical impulses. State any two limitations.
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#17 Class 10 Science Control and Coordination 2026 Short 2M CBSE
Electrical impulse is an excellent means to transmit information in the animal body, but there are some limitations to the use of electrical impulses. State any two limitations.
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#18 Class 10 Science Control and Coordination 2026 Short 2M CBSE
"The timing and the amount of hormone secreted by a gland are regulated in the human body." Justify this statement with the help of an example.
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#19 Class 10 Science Control and Coordination 2026 Short 2M CBSE
"The timing and the amount of hormone secreted by a gland are regulated in the human body." Justify this statement with the help of an example.
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#20 Class 10 Science Our Environment 2026 Long 1M CBSE
Assertion (A) : There are generally a greater number of individuals at the lower trophic levels of an ecosystem. Reason (R) : The greatest number is of the producers.
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