Home
Class 12
BIOLOGY
Tropics (23.5^(@)N to 23.5^(@)S) havespe...

Tropics (`23.5^(@)N` to `23.5^(@)S`) have________species as compared to temperature or polar regions.

A

less

B

equal

C

more

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Biodiversity is affected by latitudinal gradients.
Tropics `(23.5^(@)N` to `23.5^(@)S)` have more species than temperature or polar regions. For example, Columbia located near the equator has `1400` species of birds, while New York `(41^(@)N)` has 105 species and Greenland `(71^(@)N)` has only `56` species.
Promotional Banner

Topper's Solved these Questions

  • BIOTECHNOLOGY - PRINCIPLES AND PROCESSES

    NCERT FINGERTIPS|Exercise Biotechnology - Principles And Processes|139 Videos

Similar Questions

Explore conceptually related problems

Consider the following statements with respect to patterns of biodiversity . A. With very few exceptions, tropics (Iatitudinal range of 23.5^(@)N to 23.5^(@) S ) harbour more species than temperate or polar areas. B. In general, species diversity increases as we move away from the equator towards the poles . C. The diversity of plants and animals is uniform throghout the world but shows a rather even distribution . D. The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth. Of the above statements :

Tropical regions have greater biodiversity as compared to temperate regions due to :-

The tropics have more diversity of vascular plants as compared to the temperature regions because of

Assertion : Tropical regions have got a long evolutionary time for species diversification as compared to temperate regions. Reason : Temperate regions have undergone frequent glaciations in the past whereas tropical regions have remained relatively undisturbed for millions of years.

Which of the following is not a fundamental reason for greater biodiversity in tropics as compared to that of temperate regions ?

In general , species diversity ....ae we move away from the equator towards the poles and with very few exceptions, tropics harbor .... species than temperature or polar areas.

According to an estimate almost 40 percent forests have been lost in the tropics compared to only 10 percent in the temperate region.

Assertion : Productivity generally increases from polar regions toward the tropics. Reason : It is due to increasing sunlight and temperature toward the tropics.

According to an estimate , almost____________________ % forests have been lost in the tropics , compared to only_____________________ % in the temperate region .

NCERT FINGERTIPS-BIODIVERSITY & CONSERVATION-Biodiversity & Conservation
  1. Species diversityas one moves from high to low altitudes.

    Text Solution

    |

  2. Species diversityas we move away from the towards.

    Text Solution

    |

  3. Tropics (23.5^(@)N to 23.5^(@)S) havespecies as compared to temperatur...

    Text Solution

    |

  4. Which of the following is a reason for the greater biological diversit...

    Text Solution

    |

  5. Which option correctly describes the equations for curves A and B, in ...

    Text Solution

    |

  6. On a logarithmic scale, the species area relationship is a straight li...

    Text Solution

    |

  7. Fill in the blanks with the most appropriate option. The value of z ...

    Text Solution

    |

  8. For frugivorous birds and mammals in the tropical forests of different...

    Text Solution

    |

  9. Who confirmed communities with more species tend to be more stable tha...

    Text Solution

    |

  10. Character of a stable community is that it

    Text Solution

    |

  11. Keystone species deserve protection because these

    Text Solution

    |

  12. Match column I with column II and select the correct option from the g...

    Text Solution

    |

  13. Rivert popper hypothesis was given by

    Text Solution

    |

  14. Oragnisation responsible for maintaining Red Data Book is

    Text Solution

    |

  15. Red Data Book deals with

    Text Solution

    |

  16. How many species are documented to be extinct in last 500 years by IUC...

    Text Solution

    |

  17. According to IUCN, some of the extinctions inclide (i) Dodo (ii) I...

    Text Solution

    |

  18. Bali, Javan Caspian are

    Text Solution

    |

  19. Select the correct term for the following definitions (I,ii,iii,iv). ...

    Text Solution

    |

  20. Antilope cervicapra (blackbuck) is

    Text Solution

    |