Multiple choice

The first link of food chain is green plants because

  1. they are widely distributed

  2. they are firmly fixed to soil

  3. they alone have the capacity to fix the atmospheric CO2 in the presence of sun light

  4. there are more herbivorous animals than the carnivorous
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Green plants form the first link of food chains because they are the only organisms capable of photosynthesis - converting atmospheric CO2 and sunlight into organic matter. This unique ability makes them the primary producers that support all other trophic levels. The other options (distribution, fixation to soil, herbivore populations) are not fundamental reasons for their position.

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