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Which is true about food webs?

Food webs describe the relationships — links or connections — among species in an ecosystem, but the relationships vary in their importance to energy flow and dynamics of species populations. Some trophic relationships are more important than others in dictating how energy flows through ecosystems.

Which of the following statements about food chain is are true?

Correct option B i and iii only Explanation: A food chain does not show branching lines. It is always straight and proceeds in a progressive straight line. Usually a food chain consists of three or four trophic levels but in few food chains there may be a maximum of five trophic levels.

Why are food webs accurate?

The terms food chain and food web both refer to groups of organisms that are dependent on each other for food. The feeding relationships of organisms in the real world is almost always more complex than suggested by a food chain. For that reason, the term food web is more accurate than is food chain.

Which of the following is an example of a food web?

eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected. eg: A hawk might also eat a mouse, a squirrel, a frog or some other animal. The snake may eat a beetle, a caterpillar, or some other animal.

What is food chain short note?

A food chain shows the feeding relationship between different organisms in a particular environment and/or habitat. Food chains show how energy is passed from the sun to producers, from producers to consumers, and from consumers to decomposes such as fungi. They also show how animals depend on other organisms for food.

What are the three main parts of the food chain?

Answer: these levels are divided into producers (first trophic level), consumers (second, third, and fourth trophic levels), and decomposers. Producers, also known as autotrophs, make their ownfood.