Human Population and the Environment Flashcards
What is the meaning of the term biological plasticity?
the ability to adapt biologically to an environment
What is an adaptation?
any variation that can increase one’s biological fitness in a specific environment
list the three ways in which humans respond to environmental stresses
- Acclimatization
- Developmental acclimatization/adjustment
- Genetic change
What is Acclimatization?
Adaptation that can take moments to weeks to occur and is reversable
Short term acclimatization is..
adaptation that can occur within seconds of exposure to a stressor.
Developmental acclimatization/ Adjustment occurs…
During an individual’s growth and development. This is permanent.
Genetic adaptation occurs…
when a stressor is constant and can last for many generations. These are environmentally specific.
What factors affect population distribution and density?
~Climate
~relief
~Natural vegetation
~Soil
~Bodies of water
