Amount the following water plants, heterophylly is found in:

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. 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

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

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

6. The maximum amount of CO2 fixed by green plants by way of photosynthesis in a year is:

   A. 9 x 1013 kg
   B. 8 x 1012 kg
   C. 9 x 1011 kg
   D. 8 x 1010 kg

7. In water logged soil plants cannot grow properly because the soil is:

   A. Physiologically wet
   B. Physiologically dry
   C. Physically dry
   D. None of the above

8. Plants die from prolonged water logging because:

   A. Soil nutrients become very dilute
   B. Root respiration stops
   C. Nutrients leach down due to excessive water
   D. Cell sap in plant becomes too dilute

9. Largest amount of fresh water on our planet is contained:

   A. In lakes and streams
   B. In rivers
   C. Underground
   D. On polar ice and glaciers

10. In USA, electricity is also being generated with the half geothermal power plants in which is used water:

    A. Streams
    B. Sea
    C. River
    D. Hot springs