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Ecology Topical Questions and Answers

Institution: Secondary

Course: Biology

Content Category: Form 3 Biology Topical Questions and Answers

Posted By: raphael

Document Type: PDF

Number of Pages: 21

Price: KES 50

Views: 3661 Downloads: 52

Summary

Form 3 Biology Topical Questions and Answers
Ecology
This document contains over 50 questions and answers on ecology.

Sample Questions:
1. Define the term carrying capacity.
Maximum number of organisms which can be supported by a habitat without depleting the available resources.

2. The table below gives information about an aquarium community which is ecologically balanced.
Type of organism---------------------Dry weight (g)
Insect larvae-------------------------- 500
Fishes-----------------------------------5000
Water plants---------------------------5000
Bacteria---------------------------------10
What do you understand by term ecologically balanced?
Both consumers and producers are at equilibrium;
Number of organisms in the trophic levels can support one another in terms of nutrition.
3. Distinguish between a community and a population.
Community – It is the total number of plants and animals living together in an area of the number of organisms of different species living in a particular area.
Population – total number of organisms of a given/same species occupying an area at a certain tropic level.

4. Two species in an ecosystem cannot occupy the same niche. Explain.
A stiff competition for available resources sets in, resulting in the elimination of one species;

5. Describe how the quadrant method can be used to estimate the population of various species of plants in a given habitat.
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