Question

Two opposite forces operate in the growth and development of every population. One of them relates to the ability to reproduce at a given rate. The force opposing it is called:

• A. Morbidity
• B. Fecundity
• C. Biotic potential
• D. Environmental resistance

Answer 1

The Correct Option is D

To solve this question, we need to understand the concept underlying population ecology, specifically the forces influencing population growth and development.

Key Concepts Explained:

• Biotic Potential: This refers to the maximum reproductive capacity of a population under optimal environmental conditions. It represents the ability to reproduce at a given rate.
• Environmental Resistance: This is the sum of the environmental factors that restrict the biotic potential of an organism, thus limiting the growth of the population. It includes factors such as predation, disease, and competition for resources.
• Morbidity: This refers to the prevalence of disease within a population, which can be a part of environmental resistance but does not cover it comprehensively.
• Fecundity: This is the potential reproductive capacity of an individual or population, similar to biotic potential but focusing on reproduction capability directly.

The question describes two opposing forces in population growth. The ability to reproduce is described by the Biotic Potential, while the factor opposing it, limiting growth, is Environmental Resistance.

Explanation:

• Option Morbidity refers to disease prevalence but does not cover all factors opposing reproductive capacity.
• Option Fecundity is related to the reproductive rate, similar to biotic potential, not its opposition.
• Option Biotic Potential directly pertains to the population's ability to reproduce, not what limits it.
• Option Environmental Resistance accurately describes the opposing force that limits a population's growth by encompassing factors such as predation, disease, competition, and environmental conditions.

Conclusion: The opposite force to the biotic potential, limiting population growth, is Environmental Resistance. Hence, the correct answer is Environmental Resistance.