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  2. Crista - Wikipedia

    en.wikipedia.org/wiki/Crista

    A crista (/ ˈ k r ɪ s t ə /; pl.: cristae) is a fold in the inner membrane of a mitochondrion. The name is from the Latin for crest or plume , and it gives the inner membrane its characteristic wrinkled shape, providing a large amount of surface area for chemical reactions to occur on.

  3. Excavata - Wikipedia

    en.wikipedia.org/wiki/Excavata

    Among those with mitochondria, the mitochondrial cristae may be tubular, discoidal, or in some cases, laminar. Most excavates have two, four, or more flagella . [ 4 ] Many have a conspicuous ventral feeding groove with a characteristic ultrastructure , supported by microtubules —the "excavated" appearance of this groove giving the organisms ...

  4. Amoebozoa - Wikipedia

    en.wikipedia.org/wiki/Amoebozoa

    Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, [8] often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae. [ 7 ] [ 9 ] In traditional classification schemes, Amoebozoa is usually ranked as a phylum within either the kingdom Protista [ 10 ] or the kingdom ...

  5. Protist - Wikipedia

    en.wikipedia.org/wiki/Protist

    Microscopic organisms were increasingly constrained in the plant/animal dichotomy. In 1858, the palaeontolgist Richard Owen was the first to define Protozoa as a separate kingdom of eukaryotic organisms, with "nucleated cells" and the "common organic characters" of plants and animals, although he also included sponges within protozoa. [28]

  6. Alveolate - Wikipedia

    en.wikipedia.org/wiki/Alveolate

    In other words, the term Myzozoa, meaning "to siphon the contents from prey", may be applied informally to the common ancestor of the subset of alveolates that are neither ciliates nor colponemids. Predation upon algae is an important driver in alveolate evolution, as it can provide sources for endosymbiosis of novel plastids.

  7. Kingdom (biology) - Wikipedia

    en.wikipedia.org/wiki/Kingdom_(biology)

    Plants are thought to be more distantly related to animals and fungi. However, in the same year as the International Society of Protistologists' classification was published (2005), doubts were being expressed as to whether some of these supergroups were monophyletic, particularly the Chromalveolata, [ 46 ] and a review in 2006 noted the lack ...

  8. Why Poinsettias Are Popular Christmas Plants (and How They ...

    www.aol.com/why-poinsettias-popular-christmas...

    Poinsettia Popularity. Poinsettias are so popular they account for nearly 20% of the potted flowering plants sold in the United States, according to the U.S. Department of Agriculture.

  9. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    Some plants are tin hyperaccumulators, possibly to deter herbivory. Toxic in some forms, especially the organotin compounds, which include many potent biocides. titanium: 22: 2c: Present in most animals, possibly beneficial to plant growth, but not known to be essential; some plants are hyperaccumulators. [11] Common in medical implants. [11]