Q 31. (A) What is an ecosystem? List its two main components.
(B) 'The number of trophic levels in a food chain is limited'. Justif
the statement.
Answers
Explanation:
(A)Ecosystem-all the plants and animals in a particular area considered together with their surroundings
क्षेत्र-विशेष में पाए जाने वाले व अपने परिवेश से संबंधित सभी पौधे व पशु; पारिस्थितिकी तंत्र.
Every ecosystem has two components, namely, biotic components and abiotic components. Biotic components refer to all living organisms in an ecology while abiotically refers to the non-living things. These biotic and abiotic interactions maintain the equilibrium in the environment.
(B) In a food chain the number of trophic levels are limited to 4 - 5. This is because according to 10% law of energy transfer only 10% of energy passes from one trophic level to next
Answer:
A) An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
Every ecosystem has two components, namely, biotic components and abiotic components.
B) In a food chain the number of trophic levels are limited to 4 - 5. This is because according to 10% law of energy transfer only 10% of energy passes from one trophic level to next. Thus the amount of energy decreases with successive trophic levels.
Explanation:
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