The drainage of wetlands, cutting of forests, .............................. and road and dam construction have destroyed or seriously damaged natural habitats.

Laws have been ....... to protec wildlife from ............. ............... and overhunting.

Humans depend on species ................. to have food, clean air and water, and fertile soil for agriculture.

....... is the act of preventing something from being lost, wasted, damaged or destroyed.

Since the 1600s, worldwide commercial exploitation of animals for good and other products has seriously reduced the number of .......................... species.

A number of wildlife ................. ..................... have been established so that a wide range of endangered species can have a chance to survive and develop.

We ........... .................. from the many medicines and other products that biodiversity provides.

Many thousands of animal and plant species become ...................... before biologists can identify them.

..... ........ ............ is a global list of endangered and vulnerable animal species.

Governments have enacted laws to protect wildlife from commercial trade and ...............

Endangered species are plant and animal species which are in danger of .....

We benefit greatly from the many medicines and other products that ............... provides.

Plant and animal extinction leads to a loss of .............