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13. Food chain, food web, and different ecological pyramids

Choose the correct answers:

[Note: There may be more than one correct option.]

1. Which among the following statements is/are incorrect?

Chemical energy is stored in the form of substances like carbohydrates
Energy obtained from the sun is stored in various parts of plants
Producers convert chemical energy into kinetic energy in the form of doing work
Carnivores consume plants, which convert chemical energy into kinetic energy

2. Which among the following statements is/are correct?

Food chains vary tremendously in length and complexity
After four trophic levels, the energy loss is so high that very little usable energy is left
The energy flow in a food chain is multidirectional
Food chains have defined length and has less complexity

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