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What Is Speciation? List Four Factors That Could Lead To Speciation.
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(i) Males Are Heterogametic. Why (ii) Differentiate Between Inherited And Acquired Characters By Giving Two Points.
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In Pea Plant, Round Seed Is Dominant Over The Wrinkled.
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Can Sexual Reproduction Lead To The Variations In Characters, Speciation And Evolution? Explain
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Does Genetic Combination Of Mothers Play A Significant Role In Determining The Sex Of A Newborn?
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Study The Following Cross And Showing Self-pollination In F1, Fill In The Blank And Answer The Questions That Follows.
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In A Monohybrid Cross, Pink Coloured Flowers Are Dominant Over White Coloured Flowers.
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In A Pea Plant, Find The Contrasting Trait If
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(i) In Humans, If Gene B Gives Brown Eyes (ii) What Do You Class This Trait Of Eye Colour In Human? Explain.
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A Child Questioned His Teacher That Why Do Organisms Resemble Their Parents More As Compared To Grandparents.
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Give An Example, Of A Characteristic Being Used To Determine,
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What Is The Evolutionary Significance Of The Fossil Archaeopteryx?
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State One Of The Evolutionary Forces Leading To The Origin Of A New Species According To The Darwins Theory Of Evolution.
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An Organism Which Is A Worm, Has Very Simple Eyes,
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In A Beetle Population, The Number Of Green Beetles Is More Than Blue And Red Beetles
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How Many Pairs Of Chromosomes Are Present In Human Beings?
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Why Is The Progeny Always Tall When A Tall Pea Plant Is Crosses With A Short Pea Plant?
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What Is The Cause Of Variation In Asexually Reproducing Organisms?
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In Any Population, No Two Individuals Are Absolutely Similar. Why
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Reproduction Leads To Variation. How?
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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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