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Which one of the following acts as a phy...

Which one of the following acts as a physiological barrier to the entry of micro organisms in human body

A

Tears

B

Monocytes

C

skin

D

Epithelium of urogenital tract

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SARAS PUBLICATION-MODEL QUESTION PAPER -3-EXERCISE
  1. Which one of the following are analogous structures?

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  2. Which one among the following is an example for homology?

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  3. Which one of the following acts as a physiological barrier to the entr...

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  4. To obtain virus- free healthy plants from a diseased one by tissue cul...

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  5. In plant breeding programmes, the entire collection (of plants / seeds...

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  6. Which one of the following options gives the correct matching of a dis...

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  7. Monascus purpureus is a yeast used commercially in the production of

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  8. In paddy fields biological nitrogen - fixation is chiefly brought by

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  9. In gobar gas, the maximum amount is that of

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  10. DNA fragments generated by the restriction endonucleases in a chemical...

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  11. Cosmid is

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  12. The first human hormone produced by recombinant DNA technology is

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  13. What is it that forms the basis of DNA fingerprinting?

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  14. Genetic engineering has been successfully used for producing

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  15. Which one of the following is most appropriately defined?

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  16. Secondary productivity is rate of formation of new organic matter by

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  17. Which one of the following is not a gaseous biogeochemical cycle in ec...

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  18. The second stage of hydrosere is occupied by plants like

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  19. Which one of the following is not used for exsitu plant conservation?

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  20. Which one of the following is exotic species

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