Question

Which of the following is the biggest component of ecological heirarchy?

• (A)  Population
• (B) Community
• (C)  Biome
• (D) Biosphere

Answer 1

The Correct Option is D

Explanation:
The highest level of the ecological hierarchy is the biosphere because it consists of the surface and atmosphere of earth or another planet. It cannot be an ecosystem because that consists of only biological communities, similarly, it cannot be biomes because a biome consists of many ecosystems but is a part of the biosphere, it cannot be a landscape because it is a land that does not have a fixed natural boundary. It is the highest level of organization. It is the global ecological system that consists of all the living organisms and other factors that supports life.Hence, the correct option is (D).