Question

D. Answer the following in brief.
1. Name the two components of the environment.
2. What is food web? Why is it said that it is delicately balanced?
3. What are autotrophs and heterotrophs? Give examples of each.
E. Answer the following in detail.
1. Define ecosystem and draw a diagram to illustrate your answer.
2. Constant interactions between living and non living things impart a dynamic character to our environment . Explain the meaning of this statement

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Answer 1

Explanation:

1.Biotic and Abiotic

2.Phytoplankton and algae form the bases of aquatic food webs. They are eaten by primary consumers like zooplankton, small fish, and crustaceans. Primary consumers are in turn eaten by fish, small sharks, corals, and baleen whales. ... Humans consume aquatic life from every section of this food web.

3.

Answer 2

1)Environment mainly consists of atmcosphere, hydrosphere, lithosphere and biosphere. But it can be roughly divided into two types such as (a) Micro environment and (b) Macro environment. It can also be divided into two other types such as (c) Physical and (d) Biotic environment.

2)A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.

3) Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs.