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What is common among Nostoc, Anabaena, O...

What is common among Nostoc, Anabaena, Oscilatria and Spirullina :-

A

They all perform nitrogen fixation within heterocysts

B

They all are source of protein

C

They all have enveloped nucleus

D

They all fix carbon-di-oxide into carbohydrates

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The correct Answer is:
D
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NEET MAJOR TEST (COACHING)-MAJOR TEST 1-BIOLOGY
  1. Choose the incorrect statement for keys:-

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  2. Read the following statements (A-D) and choose the option with correct...

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  3. What is common among Nostoc, Anabaena, Oscilatria and Spirullina :-

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  4. Study the following diagram carefully and select the correct statement...

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  5. What is a, b, c and d in given table for algae?

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  6. Sporangiospore is common mode of asexual reproduction in :-

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  7. Read the following statements : (A) More than one Archegonia (B) S...

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  8. Consider the following statements. How many statements are correct ? ...

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  9. How many plants belongs to Bryophyta? Selaginella, Isoetes, Riccia, ...

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  10. Which of the following taxonomic categories can be used only for plant...

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  11. Identify which of the following is not correctly matched :-

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  12. Given below is the diagrammatic sketch of a organism identify the part...

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  13. Chief producers of oceans are :-

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  14. Which one is poikilothermic and amniote ?

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  15. In Planaria, waste material of food digestion and Nitrogenous waste ma...

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  16. Which of the following is not correct with respect to the class of the...

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  17. Which of the following is not true for pavo ?

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  18. Which of the following is not correct for petromyzon ?

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  19. Endoskeleton of calcareous ossicles, external fertilization, adults sh...

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  20. Muscular pharynx is the feature of :-

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