Another word for taking in nutrintion is , feeding , Polar bears can sense things in their environment. For example , with their nose they can sense the -------- of meat , smell , All living organisms excrete waste susbstances . Animals exrete ------------ when they breathe out ., Carbon Dioxide , Living organisms --------------------------- to make more of the same kind of organisms., reproduce , Young plants and animals get bigger. This is called--------------, growth , All living organisms break down some of the food they eat, to provide them with energy. This happens in a process called , respiration , Most living organisms can change the shape and position of their bodies. This is called --------------------------, movement .

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