Biology Practice Test: Basic Ecological Concepts (Ecosystem) – Questions with Answers and Explanations

Plants and animals of an ecosystem make up a ______ (WASSCE 2021)

A. habitat.
B. succession.
C. community.
D. population.

The difference between a community and population is ____ (WASSCE 2014)

A. a community is made up of organisms of the same species while a population is made up of organisms of different species
B. a community is made up of populations of living organisms while a population is made up of organisms of the same species
C. an ecological niche does not exist in the community but it does in a population
D. a community attracts competition but a population does not.

The area around the earth where life activities go on is referred to as _____ (WASSCE 2012)

A. biosphere.
B. lithosphere.
C. habitat.
D. ecosystem.