Organisms in the same genus are most closely related to one another according to Linnaeus's groupings.
Humans and chimpanzees are closely related organisms, sharing a common ancestor. Additionally, dogs and wolves are closely related, with domestic dogs descending from wolves through selective breeding.
Family and kingdom
Same genus or closely related species.
Clasifiaction
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.
Humans and chimpanzees are closely related organisms, sharing a common ancestor. Additionally, dogs and wolves are closely related, with domestic dogs descending from wolves through selective breeding.
Methanogens are organisms that are poisoned by oxygen, as they are anaerobic, meaning they thrive in environments without oxygen. Oxygen is toxic to them because it inhibits their ability to produce methane through anaerobic respiration.
Family and kingdom
Same genus or closely related species.
Clasifiaction
Methanogens are micro organisms whose metabolism generates methane. It belongs to the domain Archaea, and the phylum Euryarchaeota. These are very diverse morphologically.