Why a Study of Biology Is
Important
•To be an informed citizen
•An understanding of biology is
important to address a number
of social issues today.
•DNA testing
•Birth control
•Global warming
•AIDS
,So Then, What Is Biology?
•Biology is the science that
deals with life.
•What is science?
• A process used to solve
problems and understand
natural events
• Involves the scientific
method
, Basic Assumptions in
Science
•Scientistsapproach their work with some basic assumptions:
•Natural events have specific causes.
•The causes for events in nature can be identified.
•Natural events follow general rules and patterns.
•A recurrent natural event has a common cause.
•Different people can observe the same natural events.
•Natural laws hold true regardless of time and place.
, Scientists Look for Cause
and Effect Relationships
•Events that happen simultaneously are
correlated, but
•may or may not have a cause and effect
relationship.
•Example: Autumn and falling leaves
•Events have a cause and effect
relationship
•when one event happens as a direct
result of a preceding event.
•Example: Lightning causes thunder.
Important
•To be an informed citizen
•An understanding of biology is
important to address a number
of social issues today.
•DNA testing
•Birth control
•Global warming
•AIDS
,So Then, What Is Biology?
•Biology is the science that
deals with life.
•What is science?
• A process used to solve
problems and understand
natural events
• Involves the scientific
method
, Basic Assumptions in
Science
•Scientistsapproach their work with some basic assumptions:
•Natural events have specific causes.
•The causes for events in nature can be identified.
•Natural events follow general rules and patterns.
•A recurrent natural event has a common cause.
•Different people can observe the same natural events.
•Natural laws hold true regardless of time and place.
, Scientists Look for Cause
and Effect Relationships
•Events that happen simultaneously are
correlated, but
•may or may not have a cause and effect
relationship.
•Example: Autumn and falling leaves
•Events have a cause and effect
relationship
•when one event happens as a direct
result of a preceding event.
•Example: Lightning causes thunder.
