1) Another word for taking in nutrition is __________. a) breathing b) respiration 2) Polar bears can sense things in their environment. For example, with their nose they can sense the __________ of meat. a) smell b) color 3) All living organisms excrete waste substances. Animals excrete __________ when they breathe out. a) oxygen b) carbon dioxide 4) Living organisms __________ to make more of the same kind of organism. a) eat b) reproduce 5) Young plants and animals get bigger. This is called __________. a) growth b) reproduction 6) All living organisms break down some of the food they eat, to provide them with energy. This happens in a process called __________. a) respiration b) reproduction 7) Most living organisms can change the shape and position of their bodies. This is called ___________________ a) movement b) respiration

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