Term
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Definition
refers to the process where selective
pressures result in some genes becoming more frequent in a
population over time. Adaptations are environment specific;
genetic changes that are advantageous in some environments
might be detrimental in others. |
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Term
| What are the different types of adaptation? |
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Definition
1. Physiological
2. Developmental
3. Cultural
4. Genetic |
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Term
| What are cultural adaptations? |
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Definition
technological devices such as
clothing, shelter, and methods of food production. Social
systems and rules for behavior are also adaptations. |
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Term
| What is physiological acclimatization? |
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Definition
adaptive physiological
response to a single stimuli or stressor. It is a short term
change; when you are no longer exposed to the stressor you
lose it (not genetic). This happens when the environmental
conditions exceed the normal limits of tolerance and a
physiological strain is put on the body. The body adjusts by
changing the internal physical and chemical environment.
Examples include shivering and sun tanning. |
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Term
| What is developmental acclimatization? |
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Definition
adaptive physiological
response to a number of stressors or stimuli. It can produce
permanent physiological change for the individual because it
occurs during growth and development. For example, enlarged
hearts among high-altitude populations. |
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Term
| What are genetic adaptations? |
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Definition
the product of natural selection. It is
permanent for the individual and heritable, for example, sickle
cell. |
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