(1) The phrase describing population has been the number of squirrels in the forest. Thus, option B is correct.
(2) The ecology has been considered to be directly related to the population density. Thus, option B is correct.
Ecosystem has been defined as the interaction of biotic and biotic components in the specified area.
The biotic components are the living organisms of the ecosystem, while abiotic components are the nonliving constituents of the ecosystem.
Population and Ecology
(1) The population in an ecosystem has been defined as the number of living organisms that live together.
The number of squirrels in the forest has been the representation of population of squirrels in forest ecosystem. Thus, option B is correct.
(2) The ecology has been the branch of science that has been dealing with the study of relationship between living organisms in the ecosystem.
The ecology has been considered to be directly related to the population density. Thus, option B is correct.
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