Question

First link in food chain is green plant because

• A. It can synthesise food alone
  
• B. It is fixed at one place
• C. It can pick up every thing
• D. It can eat everything

Answer 1

The correct option is A It can synthesise food alone

Food chain in an ecosystem is defined as the passage of food from one trophic level to the next higher trophic level. The transfer of food from one trophic level to the next level results in the passage of energy through these trophic levels. In a food chain, the initial organisms are photosynthesisers. They are producers which produces food using solar energy. They are the first link in a food chain because they can synthesize food alone. Primary consumers are second trophic levels which eat plants. They are herbivores. Secondary consumer are present make third trophic level. They eat primary consumers and are carnivores.

Thus, the correct answer is 'It can synthesise food alone.'