importance of biology and biological observations.pptx

1. Evolution – The most exciting aspect of
biology
• Evolution, the process of change that has
transformed life on Earth
• Explains adaptation—the match of organisms
to their environments ( Form fits function)
• Explains the unity and diversity of life
• Darwin proposed natural selection as the
mechanism for evolutionary adaptation
• This unique property of life offers plethora of
things to be explored by an inquisitive mind

2. Why do we need to study biology?
• To understand nature better
• A lot of things to be explored
• Helps us in engineering innovation by bio-
mimicking eg – Artificial leaf
• Serves the purpose in the field of agriculture
eg. – Green revolution
• Helps in environmental monitoring and
remediation eg. - lichens
• A lot of application in medical science and
healthcare eg.- pacemaker
• Application in the social arena to nab criminals
and law breakers eg. – DNA fingerprinting

3. Scientific method
Interpreting Results
Support hypothesis Contradict hypothesis
Testing hypothesis
Doing Experiment Gathering data
Observing nature
Asking questions Forming Hypothesis

4. Importance of observations in Science
• Observations can reveal valuable information
• Collecting and analyzing observations can lead to
important conclusions
• Robert Brown while studying the pollens of
clarkia observed the particles were in constant
random motion
• Julius Mayor while voyaging observed that storm
whipped waves are warmer than calm sea
• These two observations together started a
continuum of work by scientists and eventually
lead to the emergence of Kinetic theory of gases
and Thermodynamics