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What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

Which organ controls breathing? lungs alveoli heart diaphragm