It varies based on the organism: breed, race, strain, member are all used.
VARIATIONS!!!!!!!!!!!!!!!!!!
speciation
It is called variations
divergence / divergent evolution
Intraspecific variation
A population.
It's called a parasitic relationship when one species benefits and one species is harmed. A simbiotic relationship is when both species benefit.
It is called variations
variations
Races or breeds are two terms for this.
divergence / divergent evolution
When competition occurs between species, the stronger species remain. This process is called: natural selection.
The study of relationship between individual species and environment is called Autecology. Study of relationship between communities and environment is called synecology.
Experimental psychologists
Competition: intraspecifically (between members of the same species) or interspecifically (between members of different species).
Members of a group that have the ability to interbreed and produce fertile offspring are called "species". This is the zoolocigal definition and name for the group.
a breed
There are several bird species called Robin, and the differences between male and female can be different in different species. In the American robin the male has a red chest and the female has a brown chest
Members of a single species found in an area are called a population.