Symbiosis - Various Types Of Symbiosis, Examples Of Natural Symbioses, Symbioses Between Humans And Other Species, Symbiosis And Evolution

Symbiosis - Various Types Of Symbiosis

Symbiosis - Examples Of Natural Symbioses

Most biologists, when confronted by the need to illustrate the concept of symbiotic mutualism, describe the case of lichens. Lichens are an obligate association between a fungus (the mycobiont) and an alga or blue-green bacterium (the phycobiont). Lichen mutualisms are very distinctive, and they can be identified on the basis of the size, shape, color, and biochemistry of their biomass. Lichenolog…

Symbiosis - Symbioses Between Humans And Other Species

Humans live in symbioses of various intensities with a number of domesticated animals and plants. To varying degrees, these cultural symbioses are mutualistic, with both humans and the other species benefitting. For example, all important agricultural plants exist in tight mutualisms with humans. Agricultural varieties of corn or maize (Zea mays), for example, are no longer capable of reproducing …

Symbiosis - Symbiosis And Evolution

Ideas about symbiosis have made some important contributions to theories that help explain the evolution of complex life forms on Earth. The first organisms on Earth were prokaryotic viruses and blue-green bacteria, which do not have an organized nucleus. Eukaryotic cells are more complex, having their nuclear material bounded within a nucleus, as well as other cellular organelles such as ribosome…