Question

Explain the flow of energy in a food chain with the help of a diagram.

Answer 1

Answer:

A general energy flow scenario follows: Solar energy is fixed by the photoautotrophs, called primary producers, like green plants. ... Tertiary consumers, which may or may not be apex predators, then consume the secondary consumers, with some energy passed on and some lost, as with the lower levels of the food chain.

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Answer 2

Energy flow in ecosystem occurs by food chain from producer to consumers.

The producers synthesise food and stores the energy from sun. E.g., green plants. They are called as autotrophs.

Then energy is transfered from producers to consumers, called as heterotrophs.

Primary consumers are called as herbivores.

Herbivores are eaten up by secondary consumers, called as carnivores.

Thus, energy is transfered within a ecosystem by prey preadator relationship.

At the apex of the food chain omnivores (thrives on autotrophs as well as heterotrophs) are present.

When the producers and consumers of the food chain are dead, their energy is utilized by detrivores (organisms feeding on dead body). E.g., termites, vultures etc.

The decomposers break down dead organisms and return the nutrients to the soil. They are known as saprophytes. E.g., bacteria, fungi.

Explanation:

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