Q4 of 163 Page 226

Why are plants called producers?

Plants are called producers because they produce their own food through the process of photosynthesis where they utilize sunlight, carbon dioxide, water, chlorophyll to produce nutrients and release oxygen as a by-product.


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2

Name two natural ecosystems and two artificial Ecosystems.

 3

Which one of the following is not a terrestrial ecosystem?

Forest, Grassland, Aquarium, Desert

 5

What name has been given to those organisms which break down the complex organic compounds present in dead animals and plants?

 6

What are planktons?