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--- biology [2021/08/03 04:32]
aga created
+++ biology [2022/09/01 07:39] (current)
aga
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 English naturalist John Ray described some 17,000 plant species in the 17th century. He is credited with making an attempt at the scientific systematics of plants. We owe to him, among others, the division into monocotyledonous and dicotyledonous plants and the first definition of species. According to him, a species is a group of individuals from similar parents. His greatest work is Historia Generalis Plantarum. [([[https://www.britannica.com/biography/John-Ray-English-naturalist|Britannica]])]
+==== Sundew ====
+The sundew is very often called an inconspicuous predator. Very often it only takes a moment of inattention for an insect to fall into a trap from which there is simply no way out. [([[https://www.nwf.org/Educational-Resources/Wildlife-Guide/Plants-and-Fungi/Sundews|National Wildlife Federation]])]
+==== Carnivorous species ====
+The real phenomenon is that as many as 700 species of carnivorous plants can be seen throughout the world.
+[([[https://www.abc.net.au/gardening/factsheets/savage-garden/10930976|ABC]])]
+==== Kamikaze ants ====
+There are kamikaze ants that live primarily in tropical forests. They have two glands within them that are responsible for producing and storing poison. [([[https://www.newscientist.com/article/mg21128295-400-kamikaze-ants-protect-the-colony/|New Scientist]])]
+==== Jumping fleas ====
+Fleas owe their superb jumping ability to the fact that they have large amounts of chemicals in their bodies that greatly enhance their performance. [([[https://www.researchgate.net/publication/49822826_Biomechanics_of_jumping_in_the_flea|Research Gate]])]
+==== Nicotine ====
+Nicotine in the tobacco plant primarily takes care of repelling as well as poisoning insects. It is a deadly weapon for them. In other words, it is a very potent neurotoxin. [([[https://www.sciencedirect.com/topics/nursing-and-health-professions/nicotiana-tabacum|Science Direct]])]
+==== Botulism ====
+Botulinum, or botulism, is considered the most potent toxin. [([[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3028942/|National Institute of Health]])]
+==== Mules ====
+Not everyone knows that mules are nothing more than a mix between a male donkey and a female horse. Even more interesting is the fact that mules are infertile, but have a very important economic importance. [([[https://www.thedonkeysanctuary.org.uk/what-we-do/knowledge-and-advice/about-donkeys/mules-and-hinnies|The Donkey Sanctuary]])]
+==== Digesting bones ====
+Hyenas are the only mammals that have such concentrated gastric juices that allow them to fully digest their bones. [([[https://www.quora.com/Is-it-true-that-hyenas-have-the-strongest-digestive-system-in-comparison-with-other-animals|Quora]])]
+==== Human skeleton ====
+The mass of the skeleton in an adult human makes up a total of about 20% of the total body mass. [([[https://www.ojp.gov/pdffiles1/nij/grants/227932.pdf|U.S. Department of Justice]])]
+==== Sweat glands ====
+More than 2.5 million sweat glands can be found in human skin, capable of producing up to a liter of sweat per day. [([[https://www.sciencedirect.com/topics/medicine-and-dentistry/sweat-gland|Science Direct]])]
+{{tag>science biology}}

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