Answer:
species
Explanation:
A species is often defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.
According to research, a species is a group of similar organisms that can mate with each other and produce fertility offspring.
It is a set of organisms capable of reproducing and obtaining fertile (non-hybrid) offspring, and that share its basic defining features.
The species is the basic unit of classification of living beings and they are the groups into which the genus is divided.
Therefore, we can conclude that according to research, a species is a group of similar organisms that can mate with each other and produce fertility offspring.
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