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Two genetically identical daughter cells are produced from a single parent cell in mitosis
It is also possible to move substances across membranes against their concentration gradient (from areas of low concentration to areas of high concentration). ... If the energy of ATP is directly used to pump molecules against their concentration gradient, the transport is called primary active transport.
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Cells are the basic unit of life and they are the 1st level of organization. The heart is the 3rd level. They are separated by 1 level, tissues.
Answer:
El tejido óseo sirve como depósito y fuente de calcio para estas necesidades metabólicas críticas a través del proceso de remodelación ósea. El metabolismo del calcio está regulado en gran parte por el sistema endocrino de la hormona paratiroidea (PTH) -vitamina D, que se caracteriza por una serie de circuitos de retroalimentación homeostática.
Explanation: