Question

All of the following are components that make up an ecosystem except

• A. Biodiversity
• B. Climate
• C. Demography
• D. Energy flow
• E. Nutrient cycling

Answer 1

Answer: (C)

Demography

A. Biodiversity is the degree of variation of life, which can be genetic variation, species variation or ecosystem variation within an area or biome.

B. Climate is distribution of weather pattern in a given area for a given period of time.

C. Demography is the statistical study of human populations.

D. Energy flow is the flow of energy through successive trophic levels in a food chain.

E. Nutrient cycling is the exchange and movement of organic and inorganic matter within an ecosystem.

Hence the component that doesn't make up an ecosystem is Demography. So, the correct answer is 'Demography'.