1. Unit A: Biological Diversity
Basilisk lizard
1.0 Biological diversity is reflected in the variety of life
On Earth.

2. Biological diversity refers to all the
different types of organisms on Earth.

3. Species: is a group or organisms that have
the same structure and can reproduce
with one another.
There are between 30 – 100 million organisms existing today

4. Just for curiosity there are new hybrids being produced.
Loganberry
Wolfin
Zeedonk
Hinny
Beefalo

5. Understanding Biological Diversity
Diversity between Ecosystems:
Ecosystem: a place where living (biotic) things
interact with other living and non-living (abiotic)
things.
- There is a huge diversity of ecosystems in the world.

6. Biological Diversity Diversity occurs within ecosystems
Population: when members of a species live
in a specific area and share the same resources.
- Community: When populations of different species live in the same area.

7. Biological Diversity Diversity Within Species:
- A species is a group of organisms that all have the same basic structure. However, if you look closely at any population, you will notice subtle variations between the individual members of the population.

8. Biological Diversity Species are not evenly distributed on our planet.
Areas around the equator have the greatest
number of plant species. The number of plant and
animal species is greatest in tropical regions.
As you move north to the temperate and then the polar
regions, you will find less biological diversity.

11. Classifying Biological Diversity
- Carolus Linnaeus developed a system for naming
and classifying organisms. He used Latin
because that was the common scientific language
of his time.
In his system, two words name each living thing:
The first word indicates the name of the genus to which the
organisms belong. This word starts with a capital letter.
The second word indicates the name of the species. It starts with
a small letter. No two species can have the same name.
Picea glauca: White spruce
Canis lupus: Wolf

12. Kingdom Phyla Classes Orders Families Genera Species
Linnaeus then organized species into groups based on their
physical structure in the following order:
General
Specific
Kingdom
Phyla
Classes
Orders
Families
Genera
Species