Topic: Ecology & Ecosystem

The base of every ecological pyramid represents:

Lichens are a pioneer community in:

Match the Trophic Interaction: List-I List-II A. Sparrow eating seeds 1. Secondary Consumer B. Sparrow eating insects 2. Primary Consumer C. Phytoplankton 3. Decomposer D. Fungi 4. Producer

Carbon constitutes what percentage of dry weight of organisms?

Which bacteria converts Nitrite to Nitrate?

Which of the following is an example of camouflage?

Monarch butterfly is distasteful to its predator because:

Competition is most severe between:

Match the Act with the Year of Enactment (India): List-I (Act) List-II (Year) A. Wildlife Protection Act 1. 1986 B. Environment Protection Act 2. 1972 C. Forest Conservation Act 3. 1981 D. Air Act 4. 1980

The total amount of energy fixed by producers in an ecosystem is: