BIOLOGY Fill in blanks.

Introduction of the African catfish _________ for aquaculture purposes in our rivers.

When one species gets extinct, the others animals and plant species dependent on that species also begin to extinct in obligatory way. It is called _________.###The phenomenon of extinction of a species, the others animals and plant species dependent on that species also begin to extinct in obligatory manner is called_________.

There is a relationship called _________ between species richness and class across a wide variety of areas.

In year 1992 there had been organised _________ on biodiversity at in Brazil.

The conservation of living organism in their Natural Habitat is known as_________.

In 2002, the World Summit on Sustainable Development was held _________ in South Africa.

The rate at which species migrate along a gradient of habitat and community is called _________ .

_________ is called Lungs of the earth.

Of the 4 regions of loss of biodiversity, _________ is the most important reason.

In tropical climate, _________ are the reasons of high biodiversity of plant and animals.

Biodiversity usually decreases on moving from _________.

The term biodiversity was at first used by_________.