Mergus serrator and Mergus merganser.
Organisms that are closely related to rabbits include; horses and turtles
Organisms in the same genus are most closely related to one another according to Linnaeus's groupings.
Family and kingdom
Same genus or closely related species.
Clasifiaction
Organisms that are closely related to rabbits include; horses and turtles
You can tell how closely related organisms are by determining the lowest classification that they share. For example, organisms that share the same genus will be more closely related than organisms that share the same family.
Closely related: obelia jellyfish Not closely related (but still related): coral sea anemone
incest.
Animals
damselflies
Organisms in the same genus are most closely related to one another according to Linnaeus's groupings.
Family and kingdom
Same genus or closely related species.
Clasifiaction
Thesus monkey is the most closely related to Humans because it has the least number of differences in cytochrome c.
Scientists can tell whether organisms are closely related by comparing their DNA. This will allow then to look at various traits and features so as to compare the relationship between organisms.