Chapter 25 - Ecosystem-1

Chapter 25 - Ecosystem-1

1. The term NICHE was first proposed by:

a) Erust Haeckel
b) Charles Eton
c) Joseph Grinnell
d) Hardy Wein berg

2. One of the following is not a BIOTIC factor:

a) Consumer
b) Producer
c) Lithosphere
d) Decomposer

3. The organisms which obtain their energy from the dead and decaying plants and animals are called:

a) Primary consumers
b) Producer
c) Secondary consumers
d) Decomposers

4. Dermatocarpon is an example of:

a) Moss
b) Foliage lichen
c) Crustose lichen
d) Herbaceous plant

5. One of the following is not the primary form of succession:

a) Xerosere
b) Hydrosere
c) Crustose
d) Derosere

6. Fungi causing dandruff is an example of:

a) Parasite
b) Symbiosis
c) Endo parasite
d) Ectoparasite

7. Lichens are an example of:

a) Root nodule
b) Mutualism
c) Succession
d) Mycorrhiza

8. Nitrogen makes following percent of gases in atmosphere:

a) 80 %
b) 0.03 %
c) 78 %
d) 20 %

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