3. Biological Evolution
• It refers to the changes,
variations in the genetics
and inherited traits of
from one generation to
• Scientists study the
changes in the physical
body of humans, the
changes in the shape
and size of their bones.
4. Cultural Evolution
• It refers to the changes
or development in
cultures from a simple
form to a more complex
form of human culture.
humans by analyzing
the changes in the
latter’s way of life.
6. • The evolution of species happens through
the process of natural selection.
• The reason for occurrence of evolution.
• The outcome processes that affect the
frequencies of traits in a particular
environment. Traits that enhance survival
and reproductive success increase in
frequency over time.
7. • Every species is made up of a variety
of individuals wherein some are
adopted to their environments
compared to others
8. • Organisms produce progeny with
different sets of traits that can inherited
• Organisms that have traits most
suitable to their environment will
survive and transfer these variations to
their offspring in subsequent
Differential reproductive success
11. group of early humans and other
humanlike creatures that can walk
• The general term used to categorize the
erect during the prehistoric period.
13. 1.Sahelanthropus tchadensis
6-7 million years ago
It had both apelike and
1. A skull similar to
Australopithecus and modern
2. Height almost similar with the
3. Brain size: 320-380 cc
4. Small teeth
5. Had the ability to walk upright