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What is the role of Cyanobacteria during...

What is the role of Cyanobacteria during early geologic periods?

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Cyanobacteria are photosynthetic blue green algae during geological periods which produce oxygen. These had played a key role in the changes of atmospheric oxygen levels from anaerobic to aerobic during the early geologic periods.
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PREMIERS PUBLISHERS-THE LIVING WORLD -OTHER IMPORTANT QUESTIONS & ANSWERS (Answer the following questions.)
  1. Define the following terms (iii) Thermoacidophiles

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  2. Name the two broad classification of bacteria?

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  3. What is the role of Cyanobacteria during early geologic periods?

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  4. Classify organisms on the basis of seven kingdom system.

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  5. Define species

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  6. Differentiate monotypic and polytypic genus?

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  7. What is taxonomic family?

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  8. What is class in classification?

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  9. Write the resultant animal when there is a cross between Male donkey...

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  10. Write the resultant animal when there is a cross between male lion w...

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  11. Write the resultant animal when there is a cross between Male tiger ...

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  12. What is Binomial nomenclature? What is its significance?

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  13. Write down the binomial names for the following,br> (iii) National Bir...

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  14. Write down the binomial names for the following,br> (iii) National Bir...

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  15. Write down the binomial names for the following,br> (iii) National Bir...

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  16. When do the system of trinomial nomenclature is followed?

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  17. What are the rules of Nomenclature?

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  18. Why are molecular tools used now to study taxonomy ?

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  19. What are the components of taxonomical tools

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  20. Differentiate Museum from zoological park

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