Wikipedia gives the next definition of culture: "Culture (from the Latin cultura stemming from colere, meaning "to cultivate,") generally refers to patterns of human activity and the symbolic structures that give such activities significance and importance. Cultures can be "understood as systems of symbols and meanings that even their creators contest, that lack fixed boundaries, that are constantly in flux, and that interact and compete with one another". Different definitions of "culture" reflect different theoretical bases for understanding, or criteria for evaluating, human activity."

But we have other word combinations with "culture", "virus culture" for example. Cultivated group of bacteria, so to say "civilized", organized into some form of order to exists and to develop its genes into new forms to survive and to grow. Difficult not to remember the words of agent Smith from the film "Matrix": "Humans are a virus". In the film he goes on that humans "like a cancer for this planet".

I couldn't find the answer for myself, as what can be seen from the plane (asphalt-paved roads, smog and mountains of trash) somehow can remind the target affected organ surface. We won't speak about other damages to the planet (nuclear explosions, chemical disasters, etc). Humans DO REMIND a virus.

Bacterium as people can be good and bad. Good ones improve the organism condition. Cultures are different too.

Some scientists think dolphins originally were on land millions of years ago. When they moved into the water, it was hard to catch fish. The nose was like ours. It was right on the front of their head. When there is a fish near them, and the dolphin has to breathe, it has to lift it's head up. In doing so, it can't keep its eye on the fish, and the fish swims away. Over time, the blowhole moved to the top of its head. Now, when it has to breathe, it just lifts its head a little up, and its eye is still on the fish!

Shakespeare used around 29,000 different words in his plays. About 10,000 of those words had never previously been used in any surviving English literature. Around 6,000 words only appear once.