Question

In a way green plants and cyanobacteria have synthesized all the food on the earth. Comment.

Answer 1

Role of green plants and cyanobacteria:

● Green plants and cyanobacteria perform photosynthesis. They use light energy to synthesize food, that is glucose.

● All other animals on this Earth depend directly or indirectly on green plants for food.

● Herbivores obtain their food directly from green plants.

● Carnivores feed on herbivores and hence, are indirectly dependent on green plants. Animals are heterotrophic and cannot prepare their food using sunlight.

● Thus, green plants and cyanobacteria synthesize all the food.