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a hormone produced by the pituitary gland, which helps to limit the amount of water lost from the body in the urine.
the collection and disposal or recycling of waste materials and the monitoring of waste.
the second set of teeth formed in mammals. In humans there are thirty-two permanent teeth.
non-indigenous species which reproduce and spread more rapidly than indigenous species. This...
is the supply of materials, in the form of food, required by organisms and cells to stay alive...
animal wastes (particularly urine) that contain materials high in nitrogen.