Subsistence agriculture is a form of farming where a family or community harvests groups for their personal consumption while market-oriented agriculture relies on the harvest of cash crops
The best reference to use will be AN ATLAS.
An atlas is a collection of maps. A map is a pictorial representation of an area of land or sea which shows all the physical features of that particular place. Many information about different places can be obtained from maps and these include the longitudes of different places.
Reception (sensation) sensory receptors detect the presence of a stimulus.
transduction (sensation) sensory receptors convert stimulus energy into electrochemical energy.
transmission (sensation) ...
selection (perception) ...
organisation (perception) ...
interpretation (perception) ...
sensation. ...
perception.
B. Natural selection and Evolution both show the change over time in the survival of a specific organism. Natural Selection chooses traits that correspond the best with the ecosystem, while evolution gradually changes the species as a whole to cope with the surroundings.
