bio

5 cards·by buryani

What is Biodiversity

A measure of the number of different species on the planet.

What is a species?

A group of organisms which can interbreed under natural conditions to produce fertile offspring.

Name three causes of extinction

1. Loss of Habitats 2. Over hunting 3. Competition from introduced species.

Explain the term Genetic Bottleneck

When a big decrease in the size of population. Causes a very small gene pool, these have a limited ability to repond to change.

What is the Evolutionary Theory?

The process by which new species are formed from pre existing ones over a very long time period. This was established by Charles Darwin.