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What do you mean by Natural Selection as...

What do you mean by Natural Selection as proposed by Darwin? Explain why the following two organs are considered as adaptive organ :
Air Sac

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UNITED BOOK HOUSE-GOVT. MODEL SCHOOL MEJIA PAPER-EXERCISE
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  2. Write the names of one each vestigeal organ present in Vertebral colum...

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  3. Give four causes of biodiversity depletion.( No need of description.)

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  4. "Nitrogen cycle is affected dur to human activities"- State two phenom...

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  5. What are the harmful impacts sound pollution can exert on the ears and...

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  6. Analyse how plants and animals are equally responsible for causing ast...

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  7. Mention the roles of biodiversity in the following two aspects in the ...

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  8. Mention the roles of biodiversity in the following two aspects in the ...

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  9. Draw a neat diagram of a reflex arc and lable the following parts: R...

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  10. Draw a neat diagram of an eukaryotic chromosome and label the followin...

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  11. State three differences between mitosis of plant cell and mitosis of a...

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  12. What is biodiversity

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  13. Define Phenotype and Genotype.

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  14. Explain why Mendel was successful in performing his hereditary experim...

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  15. How the special feature of RBC in camels is related to there ability t...

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  16. What do you mean by Natural Selection as proposed by Darwin? Explain w...

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  17. What is biological magnification. How sound effects us?

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  18. In upcoming days cryopreservation would be a determing factor for the ...

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  19. Draw the word diagram of Nitrogen cycle.

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  20. Analyse the type of information stored in PBR which can be helpful to ...

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