The serotinous cones show:

Related Mcqs:

1. The following show commensalisms:

   A. Sea anemon, hermite crab
   B. Bird and rhino
   C. Butter fly and sunflower
   D. Liver fluck and sheep

2. Which of the following plants does not show predation?

   A. Darlingtonia
   B. Viscum
   C. Both (a) & (b)
   D. Cephalotus

3. The lichens show a mutualistic relationship originating from:

   A. Obligate parasitism
   B. Facultative parasitism
   C. Halotism
   D. None of these

4. The moist tropical deciduous forest biomes show predominace of plants like:

   A. Larix and Abies
   B. Zizyphus and Butea
   C. Shorea and Tectona
   D. All of these

5. Soil formed-after leaching and rich in Al and Fe is

   A. Alluvial
   B. Padsol
   C. Laterite
   D. None of these

6. Which of the following species are restricted to a given area?

   A. Endemic
   B. Sibling
   C. Allopatric
   D. Sympatric

7. Useful adaptation of hydrophytes is:

   A. Large leaves
   B. Decrease in mechanical tissue
   C. Large mechanical tissue
   D. Increase in aerenchyma

8. The percentage of light from total solar input utilized by plants:

   A. About 1%
   B. 3 – 5%
   C. 7 – 8%
   D. 14%

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

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

10. Which of the following is a submerged floating hydrophyte?

    A. Tpha
    B. Trapa
    C. Potamogeton
    D. Ceratophyllum