Related Mcqs:

1. All the non-cultivated plants and non-comesticated animals are referred to as:

   A. Useless organism
   B. Harmful life
   C. Wild life
   D. Enemies of man

2. Green plants constitute:

   A. The first trophic level
   B. The second trophic level
   C. The third trophic level
   D. The fourth trophic level

3. In a forest ecosystem, green plants are:

   A. The primary producers
   B. Primary producers only sometimes
   C. The decomposers
   D. The consumers

4. Which group of three living organisms, given below is a link in food chain: Green plants …. Hawk:

   A. Grasshopper, frog, snake
   B. Grasshopper, rat, snake
   C. Millipedes, centipedes, sparrow
   D. Earthworm, hen, rat

5. If all the green plants were to disappear from the earth:

   A. Only the herbivores will die
   B. All the animal will die
   C. Only the carnivores will die
   D. It will not matter to anyone because chemosynthetic bacteria will produce food for all

6. When peacock eats snakes which eat insects thriving on green plants, peacock is:

   A. A primary consumer
   B. A primary decomposer
   C. Final decomposer
   D. The apex of the food pyramid

7. In a fish aquarium green aquatic plants are grown primarily for:

   A. Oxygen
   B. Carbon dioxide
   C. Fish feed
   D. Decoration

8. 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

9. Green manuring plants are:

   A. Egyptian clover (barseem)Trifolium alexandrnum
   B. Dhaincha (jayannti) Sesbania aculeata
   C. Cowpea (lobia) Vigna sinensis
   D. All of the above

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

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