Chapter 19 - Environmental Biology - Test 3

Biology Class 10
1. The intimate and long term relationship among individuals is called:

1) Parasitism   2) Predation

3) Competition   4) Symbiosis
Biology Class 10
2. Competition occurs when two or more individuals attempt to use essential common resources such as:

1) Food   2) Shelter

3) Water   4) All
Biology Class 10
3. Organisms which use the food prepared by the producers are called:

1) Consumers   2) Decomposers

3) Omnivore   4) Algae
Biology Class 10
4. Herbivores are also called:

1) Tertiary consumers   2) Producers

3) Secondary consumers   4) Primary Consumers
Biology Class 10
5. Waste products and dead bodies are decomposed by:

1) Fungi   2) Bacteria and fungi

3) Algae   4) Bacteria
Biology Class 10
6. It is an essential part of proteins:

1) Carbon dioxide   2) Ammonia

3) Nitrogen   4) Zinc
Biology Class 10
7. Habitat destruction can result in a loss of:

1) Community   2) Biotic factor

3) Species   4) Population
Biology Class 10
8. Lichens and other epiphytes growing on trees are examples of:

1) Commensalism   2) Parasitism

3) Mutualism   4) Symbiosis
Biology Class 10
9. Nitrogen fixing bacteria in the root nodules of leguminous plants is an example of:

1) Mutualism   2) Commonsalism

3) Parasitism   4) Predation
Biology Class 10
10. The study of relationships of organisms with their environment and among them-selves is called ___________.

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Biology Class 10
11. Interactions between living and non-living environments result in the establishment of a system known as _________.

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Biology Class 10
12. A group of individuals which can interbreed with each other in nature and produce fertile off springs is called ________.

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Biology Class 10
13. The type of environment in which a particular species lives is its __________.

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Biology Class 10
14. Different populations that live and interact in the same environment make up a ___________.

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Biology Class 10
15. The variety of species in an ecosystem is known as __________.

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