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$ Homologous organs are those which are ...

$ Homologous organs are those which are functionally similar but different by origin.
! Homothallic plants are those which are unisexual.

A

If both As and R are correct and R is correct explanation of As

B

If both As and R are correct but R is not correct explanation of As

C

If As is correct, R is wrong

D

If both As and R are wrong.

Text Solution

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The correct Answer is:
D
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DINESH PUBLICATION-ENVIRONMENTAL ISSUES-Assertion and reason
  1. $ Ecologically, animals are consumers. ! Living organisms are class...

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  2. $ Systematics may be defined as that branch of science which deals wit...

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  3. $ Homologous organs are those which are functionally similar but diffe...

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  4. $ Classification based on the evolutionary relationships among the org...

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  5. $ The relationship between comparable organs and structure is called A...

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  6. $ Progenote is considered to be the more ancient form of life which ga...

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  7. $ Peptidogycan is found in the cell wall of Algae. ! Blue-green Alga...

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  8. $ Mesosome is a type of polyribosomes. ! Polyribosomes from a part o...

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  9. $ Halophytes are those plants which grow in salty soils. Heliophyte...

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  10. $ Spirulina is a rich source of proteins. ! Spirulina has a spiral c...

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  11. $ Sulphur depended archaebacteria are called thermoacidophiles. ! Ar...

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  12. $ Nostoc has chloropyll "a" and phycocyanin pigments. ! Chlorophyll ...

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  13. $ Protists are eukaryotes ! Eukaryotes do not have the double membra...

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  14. $ Euglena is biflagellated and has cell wall. ! Because cell wall is...

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  15. $ The glagellum in protists is single stranded. ! Single stranded fl...

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  16. $ Zygotic meiosis occurs at the time of germination of zygote. ! Zyo...

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  17. $ Meiosis is a requirements of sexual reproduction. ! Meiosis occurs...

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  18. $ In the cell wall of Dinoflagellates, there is present only one groov...

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  19. $ Euglena has mixotrophic nutrition. ! Mixtrophic nutrition means th...

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  20. $ Slime mouls are mainly saprophytic. ! Saprophytes get their nutrit...

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