By the fixed alleles in the species
Community
A species with defined male and female sexes is referred to as dioecious. In contrast, hermaphroditic species have both male and female reproductive organs, enabling them to change sex as needed.
Community
genome
Some traits are derived from the species' genome, and a species is defined as a group of organisms that are genetically similar enough to leave fertile offspring.
Bottlenose Dolphins is one defined species
exotic species
An ecosystem is defined as all the various species living in the same area. There are many different ecosystems across the world.
A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring
The range of a population or a species is defined as the geographical area where the population or species is found.
species
Population
Community
In biology: a population is a sub-section of a species as defined by geographic location
genome
Species
A species with defined male and female sexes is referred to as dioecious. In contrast, hermaphroditic species have both male and female reproductive organs, enabling them to change sex as needed.