excretion both plants and humans
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9 Terms
define exertion
removal of waste products of metabolism
define metabolism
all the chemical reactions in the cells
what do plants excrete
plants excrete
oxygen
carbon dioxide
how do plants remove the two gases
they excrete oxygen an carbon dioxide by diffusion out of the stomata
when does the carbon dioxide and oxygen excrete
carbon dioxide- respiration
oxygen- photosynthesis
what are the three organs that humans use to excrete
lungs
kidneys
skin
what do lungs excrete
they excrete the carbon dioxide during respiration by exhaling
what do kidneys excrete
they excrete urea
what does the skin excrete
they excrete water, mineral ions (salt), and a small amount of urea. This comes out as sweat.
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