The plants which can withstand narrow range of temperature tolerance:

Related Mcqs:

1. Those chemicals which are produced by plants and affect other plants are broadly called:

   A. Depresants
   B. Allomones
   C. Allelochemics
   D. Kairomones

2. Among the plants listed, point out one that does not fit into ecological group represented by the other plants:

   A. Acacia
   B. Aloe
   C. Euphorbia
   D. Rhizophora

3. Among the plants listed, point out one that does not fit into biological group represented by other plants

   A. Euphorbia
   B. Acacia
   C. Vallisneria
   D. Aloe

4. Range suitability is the adoptability of range area to grazing by livestock. Factor to be considered for it:

   A. Kind of vegetation
   B. Topography
   C. Availability of drinking water
   D. All of the above

5. The major range type found in Tharparkar Desert Range is:

   A. Sand dunes
   B. Valleys
   C. Flat alluvial plains
   D. Rocky hills
   E. All of the above

6. The non-green plants are as important as the green plants because they:

   A. Cause human disease
   B. Cause diseases of other plants
   C. Are useful in several industries
   D. Bring about decomposition of dead animals and plant remains

7. Plant groups growing in zones where high temperature alternates with low temperature are called:

   A. Megatherms
   B. Hekistotherms
   C. Microtherms
   D. Mesotherms

8. Temperature – with June the hottest month, summer (May to August) in plains is very hot and daily maximum temperature normally exceed 40

   A. Upper Punjab
   B. Upper Sind
   C. Upper KPK
   D. None of these

9. Water pores are found in which of the following plants?

   A. Xerophytes
   B. Mesophytes
   C. Hydrophytes
   D. Halophytes

10. Plants growing on desert and steppe are called:

    A. Oxylophytes
    B. Lithophytes
    C. Eremophytes
    D. Psilophytes