Question

Select the correct sequential level with decreasing complexity of ecological organisation.

• A. Biome, population, community, organism
• B. Biome, community, population, organism
• C. Community, population, organism, Biome
• D. Organism, community, population, Biome

Hint:

Arrange the levels from the largest unit to the single living individual.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Ecological organisation goes from organism to population to community to ecosystem to biome to biosphere.

Step 2: Reverse the order
In decreasing complexity, the order is biome, community, population, organism.

Step 3: Compare the options
This matches the second option.

Final Answer:
The decreasing order is biome, community, population, organism. \[ \boxed{\text{(B) }\text{Biome, community, population, organism}} \]