Ecology and Ecosystem

An ecosystem can vary from an area of hundreds of square kilometres to a tiny pond or a single plant.

Which among the following is the unit of measurement of the "Ecological Footprint"?

The ecological niche of an organism relates to

Choose the components of the forest ecosystem:

Deserts, rainforests, coral reefs and mangroves are features of _____.

Name the scientist who coined the term ecology.

What is known as the balance with the living organisms in the biosphere? 

Choose the correct example of decomposers:

Which is a primary consumer?

Avian influenza or bird flu has been reported from the states of Kerala, Rajasthan, Madhya Pradesh, Himachal Pradesh, Haryana, Gujarat and Uttar Pradesh. Identify the correct statements with regard to Bird flu.

1. It is widely held that Bird flu is caused by the movement of migratory birds who when they come into contact with the domestic birds cause the outbreak ofthe avian influenza.

2. Humans are not immune from H5N1 and other strains of the bird flu and there have been reported cases. However, there is no human to human transmission of the virus.

3. The containment strategy for bird flu centres on culling or mass destruction of the birds which causes economic hardship to the farmers.

4. There is no provision for providing financial help to those fanners whose birds have been impacted.

Which of the following is not a commercial class of seed?

Which crop is grown for oil and fibre?

Rancidity in Sunflower oil is caused by?

Azolla is mostly used in which crop?

The compost made from farm waste like sugarcane trash, paddy straw, weeds, and other plants and other waste is called as.....:

The blotter method of seed health testing detects primarily:

Seed coat peroxidase test is used for–

...... is a formation which contains water but can not transmit it rapdly enough to furnish a significant supply to a well or spring.

Alluvial Fans means:

When plant species eliminate other plants by releasing toxic chemicals, it is called: