Search results
Results From The WOW.Com Content Network
Many foods were originally domesticated in West Africa, including grains like African rice, Pearl Millet, Sorghum, and Fonio; tree crops like Kola nut, used in Coca-Cola, and Oil Palm; and other globally important plant foods such as Watermelon, Tamarind, Okra, Black-eye peas, and Yams. [ 2] Additionally, the regionally important poultry animal ...
This event is called endosymbiosis, or "cell living inside another cell with a mutual benefit for both". The external cell is commonly referred to as the host while the internal cell is called the endosymbiont. [10] Chloroplasts are believed to have arisen after mitochondria, since all eukaryotes contain mitochondria, but not all have chloroplasts.
Land plants evolved from a group of freshwater green algae, perhaps as early as 850 mya, [3] but algae-like plants might have evolved as early as 1 billion years ago. [2] The closest living relatives of land plants are the charophytes, specifically Charales; if modern Charales are similar to the distant ancestors they share with land plants, this means that the land plants evolved from a ...
An overview of the endosymbiosis theory of eukaryote origin (symbiogenesis). Symbiogenesis theory holds that eukaryotes evolved via absorbing prokaryotes. Typically, one organism envelopes a bacterium and the two evolve a mutualistic relationship. The absorbed bacteria (the endosymbiont) eventually lives exclusively within the host cells.
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. [ 1] The entomologist E. O. Wilson characterised parasites as "predators that eat prey in units of less than one". [ 2]
Listeria grown on agar medium. TEM micrograph of Listeria monocytogenes. Listeria is a genus of bacteria that acts as an intracellular parasite in mammals. By 2024, 28 species had been identified. [ 1][ 2][ 3] The genus is named in honour of the British pioneer of sterile surgery Joseph Lister.
Protozoa ( sg.: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris. [ 1][ 2] Historically, protozoans were regarded as "one-celled animals".
A small number of insects are monophagous, feeding on a single plant. The silkworm larva is one of these, with mulberry leaves being the only food consumed. More often, an insect with a limited host range is oligophagous, being restricted to a few closely related species, usually in the same plant family. [15]