ICT Role in 21st Century Education & its Challenges.pptx
Adaptation
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2. Any structural, physiological or behavioural
characteristics of an organism or group of
organisms that make it better suited in its
environment and consequently improve the
chances of survival and reproductive success.
TYPES OF ADAPTATION:
Structural adaptation
Physiological adaptation
Protective adaptation
Animal association adaptation
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20. ADAPTATION AND ENVIRONMENT
PRIMARY AND SECONDARY ADAPTATION
IRREVERSIBILITY OF ADAPTATIVE EVOLUTION
SELECTION, MUTATION AND GENETIC DRIFT
LEVELS OF EVOLUTIONARY CHANGES AND
RESULTING ADAPTATION
CO ADAPTATION
PRE ADAPTATION AND POST ADAPTATION
ADAPTIVE OVERSPECIALISATION
CONVERGENT AND DIVERGENT ADAPTATION
ADAPTIVE AND NON ADAPTIVE TRAITS
