Recent Questions
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(i) Identify The Fossils A, B And C (ii) In Which Region Was Fossil C Found? (iii) In Which Region Are Recent Fossils Found?
CBSE DiscussionsModified 5 Year Ago
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Explain The Original Idea Of Tracing Evolutionary Relationships.
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0 votes0 answer228 views
Why Is It More Appropriate To Compare The Process Of Evolution With Branches Of A Tree Rather Than With A Ladder?
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Bacteria Have A Simpler Body Plan When Compared With Human Beings.
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Evolution Has Exhibited A Greater Stability Of Molecular Structure When Compared With Morphological Structures.
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Does Geographical Isolation Of Individuals Of A Species Lead To Formation Of A New Species? Provide A Suitable Explanation.
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X, Y And Z Are Three Animals. The Animal X Can Fly, But Animal Y Can Only Run On Ground Or Walls
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Name Any Five Vegetables Generated From A Common Ancestor Through Artificial Selection Rather Than Natural Selection.
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0 votes0 answer373 views
Define Evolution. How Does It Occur? Describe,
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(i) What Is Geographical Isolation. (ii) Illustrate Formation Of A Species With The Help Of An Example
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Modified 5 Year Ago
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Give Reason For Your Choice. A Person First Crossed Pure-bread Pea Plants Having Round-yellow Seeds With Pure-bread
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A Trait May Be Inherited, But May Not Be Expressed. Justify This Statement With The Help Of A Suitable Example.
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Modified 5 Year Ago
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What Are Homologous Structures? Give An Example.
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(i) Give The Evidence That The Birds Have Evolved From Reptiles. (ii) Insects, Octopus, Planaria And Vertebrates Possess Eyes.
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A Scientist Is Conducting Embryological Studies For Collecting Evidence Supporting Evolution.
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0 votes0 answer347 views
The Two Areas Of Study Namely Evolution And Classification Are Interlinked. Justify The Statement.
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0 votes0 answer258 views
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What Is Speciation? List Four Factors That Could Lead To Speciation.
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Modified 5 Year Ago
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(i) Males Are Heterogametic. Why (ii) Differentiate Between Inherited And Acquired Characters By Giving Two Points.
CBSE DiscussionsModified 5 Year Ago
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Modified 5 Year Ago
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In Pea Plant, Round Seed Is Dominant Over The Wrinkled.
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0 votes0 answer316 views
Can Sexual Reproduction Lead To The Variations In Characters, Speciation And Evolution? Explain
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0 votes0 answer247 views
Does Genetic Combination Of Mothers Play A Significant Role In Determining The Sex Of A Newborn?
CBSE DiscussionsModified 5 Year Ago
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0 votes0 answer497 views
Study The Following Cross And Showing Self-pollination In F1, Fill In The Blank And Answer The Questions That Follows.
CBSE DiscussionsModified 5 Year Ago
