Question

Short Answer Type Questions

20. Explain the terms 'producer' and 'consumer'. Give two examples of producers and two of consumers.??

21. (a) Define decomposers. Name one decomposer?
(b) What is the role of decomposers in the ecosystem?

22. What is meant by a primary consumer, secondary consumers and a tertiary consumers? Give one example of each.?



Instructions:


1. please do not give the invalid answer.
2. I want full answers with full acceleration all 4 questions.
3. I didn't accept your half answer. I accept all four answer with explanation.​

Answer 1

Answer:

decomposer is an organism that decomposes, or breaks down, organic material such as the remains of dead organisms. Decomposers include bacteria and fungi. These organisms carry out the process of decomposition, which all living organisms undergo after death.

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Answer 2

20. Organisms that produce their own food from simple inorganic substances such as water and carbon dioxide are called producers. Examples are green plants and blue-green algae. Organisms that consume the food prepared by producers are called consumers. Examples are cows and human beings.

21. (A) A decomposer is an organism that decomposes, or breaks down, organic material such as the remains of dead organisms. Decomposers include bacteria and fungi. These organisms carry out the process of decomposition, which all living organisms undergo after death.

21. (B) Decomposers feed on dead things: dead plant materials such as leaf litter and wood, animal carcasses, and feces. They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere.

22. PRIMARY CONSUMERS: These are herbivores and feed directly on producers i.e. green plants. ... SECONDARY CONSUMERS: These are carnivores and feed on primary consumers and producers. For example, dogs, cats, birds etc. TERTIARY CONSUMERS: These are top carnivores that feed on primary and secondary consumers and producers.