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The origin of the eukaryotic cell, or eukaryogenesis, is a milestone in the evolution of life, since eukaryotes include all complex cells and almost all multicellular organisms. The last eukaryotic common ancestor (LECA) is the hypothetical origin of all living eukaryotes, [ 70 ] and was most likely a biological population , not a single ...
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Newborns are a lighter tan color and smooth regardless of sex. During adolescence and after molting, they will turn green. Like some species of lizards, their legs can fall off due to stress, if being held (by a predator or an object) or when molting. These legs grow back (usually after 1 or 2 molts).
Between 950,000–1,000,000 of all described animal species are considered insects, so over 50% of all described eukaryotes (1.8 million species) are insects (see illustration). With only 950,000 known non-insects, if the actual total number of insects is 5.5 million, they may represent over 80% of the total, and with only about 20,000 new ...
The defining membrane-bound structure that sets eukaryotic cells apart from prokaryotic cells is the nucleus, within which the genetic material is carried. All large complex organisms are eukaryotes, including animals, plants and fungi. The group also includes many unicellular organisms
The last eukaryotic common ancestor (LECA) is the hypothetical last common ancestor of all living eukaryotes, around 2 billion years ago, [3] [4] and was most likely a biological population. [8] It is believed to have been a protist with a nucleus, at least one centriole and cilium , facultatively aerobic mitochondria, sex ( meiosis and syngamy ...
Phryganistria tamdaoensis is a species of stick insect belonging to the family of giant sticks. It was described in 2014 based on specimens from the Tam Đảo National Park in Vietnam, hence, the specific name tamdaoensis. [2] It was described by Joachim Bresseel and Jérôme Constant, biologists of the Royal Belgian Institute of Natural ...
The word insect comes from the Latin word insectum from in, "cut up", [1] as insects appear to be cut into three parts. The Latin word was introduced by Pliny the Elder who calqued the Ancient Greek word ἔντομον éntomon "insect" (as in entomology ) from ἔντομος éntomos "cut in pieces"; [ 2 ] this was Aristotle 's term for this ...