Chapter 21, Problem 1SQ

Summary Introduction

Concept introduction: The rise in number of individuals in a population is called population growth. The rate of population growth becomes more rapid in proportion to the growing total size of population. Population distribution is an arrangement of population in a particular area according to its conditions and requirements of the society.

Answer to Problem 1SQ

Correct answer: A group of interacting individuals of a single species located within a particular area is a population. Hence, option d. is correct answer.

Explanation of Solution

Reasons for the correct statement:

Option d. is given as, “a population”. A population is a group of interbreed organisms of same species that lives in same area. Demographics are the statistics used to describe population. Plot sampling are the methods mainly used for population size estimation. Hence, option d. is correct answer.

Reasons for incorrect statements:

Option a. is given as “a biosphere”. Biosphere is a region of earth and its atmosphere in which living organisms exist and capable for supporting life. Individuals of same species in a particular area is population not biosphere. Hence, option a. is incorrect.

Option b. is given as “an ecosystem”. Ecosystem includes all living and non-living organisms. Individuals of same species in a particular area is population not biosphere. Hence, option b. is incorrect.

Option c. is given as “a community”. Community is a small social unit in which the people share common characteristics like belongs same religion, values, or identity. Individuals of same species in a particular area is population not biosphere. Hence, option c. is incorrect.

Hence, options a., b., and c. are incorrect.

Conclusion

A group of interacting individuals of a single species located within a particular area is a population.