Food Chain Definition For Class 3

For example, you could write the food chain for a lion like this: A diagram that shows the transfer of energy in one line is a. A rabbit eats the grass.

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Food chains are dynamic in nature which link the biotic and abiotic components of an ecosystem.

Food chain definition for class 3. A food chain is a pathway that represents the exchange of energy from one organism to another. For example, grass produces its own food from sunlight. Food chains and food webs draft.

A food chain always starts with a producer. It starts with the primary source, like the sun or hydrothermal vents, where producers make food, continues with consumers, or animals who eat the food, and ends with the top predator. For example if there was a shortage of fish for penguins to eat, penguins would survive less well reducing the food supply for animals further up the food chain.

A food chain in a grassland ecosystem may consist of grasses and other plants, grasshoppers, frogs, snakes and hawks (figure 8.3). A sequence of organisms which feed on one another and transfer energy from a food chain. It begins with producer organism, follows the chain and ends with decomposer organism.

Preview this quiz on quizizz. This is the simplest way of showing feeding relationships. The flow of energy through a single straight pathway from the lower trophic level to the higher trophic level is called food chain.

Animals are called consumers because they do not make their own food — they eat, or consume, other organisms. Most food chains start with organisms that make their own food, such as plants. The study of food chain.

The food chain starts with the producer or plants that convert solar energy into the usable form of energy (food) by the process of photosynthesis which is then eaten by consumers. The interconnected, numerous food chains through which the energy flow in the ecosystem is called food web. A food chain describes how different organisms eat each other, starting out with a plant and ending with an animal.