biodiversity

1. BIODIVERSITY
(also known as biological diversity)
It is made up of two words:

2. 3 TYPES OF BIOLOGICAL DIVERSITY

3. GENETIC VARIATION
PRIMARY SOURCES OF GENETIC VARIATION
• Mutations
• gene flow
• sexual reproduction (recombination)

4. Species diversity:
is all the differences within and between populations of species, as
well as between different species

6. ECOSYSTEM DIVERSITY
Ecosystem diversity
This is all the different habitats, biological communities, and ecological
processes, as well as variation within individual ecosystems.

7. SPECIATION
• Speciation is the process of forming new species through evolution.

8. Importance of speciation
• Speciation increases biodiversity because it creates new species

9. How it happens
• Speciation depends on different environments. This is because many
different variants of a species can each be selected for. They then
reproduce and over time can become different species

10. MODES OF SPECIATION
• Speciation occurs when a group within a species separates from other
members of its species and develops its own unique characteristics