A food chain always starts with :-a)Photosynthesisb)Respirationc)Nitrogen fixationd)DecayCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

The correct answer is Photosynthesis

Key Points

1) Primary Energy Source:
A food chain starts with the primary energy source, usually the sun or boiling-hot deep-sea vents.
2) Autotrophs:
The next link in the chain is an organism, that makes its own food from the primary energy source - an example is photosynthetic plants, which make their own food from sunlight (using photosynthesis) and chemosynthetic bacteria, that make their food energy from chemicals in hydrothermal vents.
These are called autotrophs or primary producers.
3) Photosynthesis:
For plants, the energy is obtained from the sun, this energy will be utilized by plants for the production of food by the process called photosynthesis.

So plants are called producers.
They prepare food by themselves and they won’t depend on other organisms for food. So they are placed in the first trophic level of the food chain.

Additional Information

1) Primary Consumers: The animals which depend on plants are said to be primary consumers and they are also called herbivores, this comes under the second trophic level
. Some of the examples of herbivores are cows, goats, etc.
2) Secondary Consumers: The animals which consume herbivores as their food are said to be secondary consumers and they are also called carnivores, this comes under the third trophic level.

3) Tertiary Consumers:

The animals which consume plants, herbivores, and carnivores are said to be tertiary consumers, they come under the fourth trophic level.

4) Decomposers: The apex of the food chain is occupied by decomposers, they prey on all organisms but there are no predators for decomposers. During this process, the energy is transferred from one level to another and some energy is lost and will never be reused by plants.

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Answer

Photosynthesis.

Answer

Option A ) is correct PHOTOSYNTHESIS

Answer

Photosynthesis

Answer

•photosynthesis

As first trophic level of every food chain is of a producer and producer makes its food with the help of photosynthesis.

Hence Option (A) is the correct answer

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Answer

Because the first trophic level in food chain is producers that's why photosynthesis is the correct one

Answer

Option A : Photosynthesis..

Answer

Food Chain and its Starting Point

Food chain refers to the sequence of organisms in which each organism is the food for the next in the series. It represents the transfer of energy and nutrients from one organism to another. The starting point of a food chain is crucial in determining its overall functioning.

Photosynthesis as the Starting Point

The process of photosynthesis is the starting point of the food chain. It is the process by which green plants, algae, and certain bacteria use sunlight, carbon dioxide, and water to produce glucose and oxygen. Glucose serves as the primary source of food for plants, while oxygen is released into the atmosphere as a by-product.

Significance of Photosynthesis

Photosynthesis is critical for the survival of life on earth. It not only serves as the starting point for the food chain but also provides oxygen to the atmosphere, which is essential for respiration. It is the primary source of energy for all living organisms, directly or indirectly.

Conclusion

In conclusion, the starting point of a food chain is photosynthesis. The process of photosynthesis is crucial for the survival of life on earth, as it provides energy and nutrients to all living organisms. It is essential to understand the significance of photosynthesis and its role in the food chain for a better understanding of the ecosystem.

Answer

Answer

Absolutely correct to say that food chain starts with photosynthesis,because it is the process to make the food for producers( plants),which are the first stair of food chain.

Answer

As per 10% law, The food chain start with the ⛅ sun and 10% of the energy is reached for the plant then for the other organizam so photosynthesis is first process to convert the Solar energy into Chemical energy .So the food chain start with photosynthesis .

Answer

This is because at first green plants perform the photosynthesis process and the insects eat them and grows them later on the insects are eaten by the insects and the food chain continuous

Answer

A. photosynthesis

Answer

Option A is correct because as we know that. the. 1 level of trophic level is plants and plants do photosynthesis to get their food requirements and also 10 percent of this energy is transferred to another trophic level.

Answer

A food chain always start from plants those are called producer they produce their food from photosynthesise

Answer

A is correct answer.....  bcoz photosynthesis is base of any food chain...  bcoz plant are basic for the any food chain so that's why photosynthesis is correct answer

Answer

Yes, Photosynthesis is the 1st  process of food chain because at 1st food is made up of vegetables which is green in color and contain autotrophic modes of nutritions , so option 1st is correct answer.

Answer

Because integrated food is first made by the process of photosynthesis!

Answer

Because it is the process in which food is cooked in the presence of sunlight

Answer

First option, (i) photosynthesis

Answer

Because we are directly or indirectly depends upon photosynthesis . green plants synthesis their food and from plants all organisms takes food so food chain start from photosynthesis

Answer

Ok

Answer

Photosynthesis is the correct answer

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