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Population
A group of the same species living in a particular place
Mortality
Death rate per thousand population per year
Natality
number of births per population 1000 per year
Age structure
The distribution of various age groups in a population
Mark and recapture
For highly mobile animals. Collect and count a large sample of organisms. Mark and release.
Commensalism - symbiosis - mutualism relationship
One organism benefits and the other is unaffected
Mutualism - symbiosis definition
A relationship between two in which both benefit.
Competition is
Not symbiosis, as they are competing for the same recourse
Amensalism definition
Not symbiosis - An interaction which one species is inhibited and the other is neither benefited or harmed