Question

The first link in any food chain is always a green
plant because
(a) they are widely distributed
(b) they are firmly fixed to the soil
(c) they alone have a capacity to fix atmospheric
CO₂in the presence of sunlight
(d) all of the above

Answer 1

Answer:

option d should be correct......

Answer 2

Answer is option "d"

Explanation:

• 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.
• Hence, the right answer is option d "all of the above".