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Importance of major elements in food chain

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Ayesha Rashid

on 27 April 2014

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Transcript of Importance of major elements in food chain

Importance of major elements in food chain!
Consumers are organisms that receive energy by consuming other organisms.Consumers dominate most of a food chain. They have important roles to play within an ecosystem such as balancing the food chain by keeping animal populations at a reasonable number. Without proper balance, an ecosystem can collapse. Examples of consumers can be squirrels, lion, foxes etc. Basically consumers are those who cannot produce their own food.
A predator is something that hunts and preys upon something else, usually for survival, such as animals. The predators' role in the food chain is to keep the herbivores in check, and make sure they don't over populate. If there were no predators any where there would be too many herbivores.
What is Food Chain?
A food chain is a linear sequence of links in a food web starting from a species that are called producers in the web and ends at a species that is called decomposers species in the web. A food chain also shows how the organisms are related with each other by the food they eat.
There are four major elements of food chain:
Producers are very important in a food web because they are the beginning of a food web. Without a producer the rest of the animals in the food web might die.The energy in the food web starts with the producers. They are at the bottom of the food chain and supply energy to animals and plants who rely on energy from them. It is like a domino chain reaction. If one part of the food chain is removed, the rest of it is harmed! Some example of producers in a food chain can be flowers, trees, grasses etc.
You can see that the grasshoper is consuming food from the flower, which shows grasshoper is a consumer and flower is a producer.
At the beginning of all food chains is the sun. Sunlight is energy, and plants use this energy to turn water and carbon dioxide into plant food. This process is called "photosynthesis." Plants also need minerals and nutrients. They get these from the soil when their roots take up water. While this might not sound like the kind of food you would want to eat, this plant food allows plants to grow, flower, and produce things like acorns, potatoes, carrots, apples, pecans, and many other kinds of fruits.
Where do you fit in a food chain?
How do you fit into the food chain? Because you are an omnivore and eat both plants and animals, you are a primary and a secondary consumer. The carrot you ate at lunch makes you a primary consumer. But the meatloaf you ate for dinner makes you a secondary consumer. But even though people are mostly secondary consumers, we still cannot escape the decomposers. When someone gets very old and dies their energy is eventually returned to the soil where it will be taken up by plants to begin a new food chain and continue the circle of life.
In a food chain prey is the stuff that gets eaten by a bigger animal. A prey is an animal that is being hunted to feed on. For example, a spider would be the predator and the fly would be considered the prey!
1.The food chain is the transfer of energy from one species to another.
2. Within a food chain, some living things create the energy (producers) and some use the energy (consumers).
3. There are more than 100,000 different types of decomposer organisms. These simpler nutrients are returned to the soil and can be used again by the plants. Then the energy chain begins all over again.
4. If one level is removed from the food chain, it can have disastrous results.
5. Humans are at the end of the food chain. They eat both plants and animals that have consumed other forms of energy.
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