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This transport process is called translocation. [2] In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Ancient Greek word φλοιός (phloiós), meaning "bark". [3] [4] The term was introduced by Carl Nägeli in 1858. [5] [6] Different types of phloem can be distinguished. The early phloem formed in the ...
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The pressure flow hypothesis, also known as the mass flow hypothesis, is the best-supported theory to explain the movement of sap through the phloem of plants. [1] [2] It was proposed in 1930 by Ernst Münch, a German plant physiologist. [3]
Botanical Society of America: What is Botany? Science & Plants for Schools; Teaching Documents about Botany Teaching documents, lecture; Why study Plants? Department of Plant Sciences, University of Cambridge; Flora and other plant catalogs or databases. The Virtual Library of Botany
Guttation on Equisetum sp.. Guttation is the exudation of drops of xylem and phloem sap on the tips or edges of leaves of some vascular plants, such as grasses, and also a number of fungi.
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Translocation can be an effective management strategy and important topic in conservation biology, but despite their popularity, translocations are a high‐cost endeavor with a history of failures. [ 3 ] [ 4 ] It may decrease the risk of extinction by increasing the range of a species, augmenting the numbers in a critical population, or ...
A Mass General Brigham emergency care doctor shares step-by-step guidance on how to administer the Heimlich maneuver to adults, children and yourself in a choking event.