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An Object Is Placed At 2 F1 In Front Of A Convex Lens. What Is The
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Draw A Labelled Diagram Showing How An Image Of A Small Size Can Be Projected On Large Screen
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A Convex Lens Made Of A Material Of Refractive Index N2 Is Kept In A Medium Of Refractive Index N1.
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Observe The Following Incomplete Ray Diagram Of An Object Where The Image A B Is Formed After Refraction From A Convex Lens.
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Following Are Certain Reflex Actions Occuring In Our Body
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A Child Is Frightened By A Loud Noise And Shouts For Help. In Which Order, The Different Types Of Neurons Involved Will Act?
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Adrenaline Hormone Is Secreted In The Body During Emergency Situations. What Would Be The Effects Of Increased Concentration Of Adrenaline On Body
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The Diagram Shows A Reflex Arc In Which A Bee Sting Causes The Arm To Be Moved Quickly.
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Observe The Figure Given Below. In The Figure, Some Parts Are Labelled As P, Q, R, S And T.
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The Diagram Shows The Central Nervous System, Which Has Been Blocked In Three Different Places By A Drug Used As An Anaesthetic.
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The Given Diagrams Shows Some Of The Features Of Human Skin.
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An Endocrine Gland P Is Located Below The Stomach In The Human Body.
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(i) Suggest An Explanation For The Fact That The Chemical Produced (ii) Write Any Three Endocrine Glands And Chemical Produced By Them
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Nerves And Hormones Both Are Used To Control Processes Within The Body. Using Examples
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(i) A Nerve Input Signal Travelled Only Upto The Spinal Cord (ii) Draw A Nerve Pathway For The Above Action And Suggest
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With The Help Of A Labelled Diagram, Illustrate The Pathway Of Response When Someone Pricks In Your Hand With A Pin.
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Adrenal Glands Are Located On Top Of Each Kidney.
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A Boy Runs On Seeing A Stray Dog. His Breathing Rate Becomes Very Fast And Blood Pressure Also Increases
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A Plant In The Laboratory Is Given Increased Dose Of A Hormone, Which Promotes The Development Of Seedless Fruits.
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Following Are The Two Examples Of Plant Movement.
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What Are Receptors With Reference To Nervous System?
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Write One Function Of Each (i) Auxin (ii) Gibberellins
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Name The Source And Target Organs Of Adrenaline.
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How Is Geotropism Necessary For Plant?
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Give The Exact Location And Function Of Cerebellum.
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Is Reflex Action The Only Function Of Spinal Cord? Support Your Answer With A Single Statement.
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Assertion : Endocrine Glands Are Called Ductless Glands. Reason : These Glands Direct Pour Their Secretion Into The Blood.
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