The definition of a churn is a device for making butter. An example of a churn is what the Amish use to make butter. verb. To churn is defined as to stir or shake milk or cream with intense movements in the process of making butter, to stir up and agitate, or to produce something at a rapid and regular rate. An example of to churn is for a boat to create waves while moving quickly through the water .
Quick Answer. Plants absorb energy from the sun and use photosynthesis to make sugars. Animals have mitochondria that use the sugars provided by plants to produce their own cellular energy. Plants that produce their own food, and food for other plants and animals using photosynthesis, are called autotrophs.
1 Animals get their carbon from eating either plants (carbohydrates) or other animals (proteins and fats) which they then digest. 2  They respire, giving off carbon dioxide to the environment. 3  Waste carbon-based material is excreted by animals, and is digested by decomposers-mainly microbes and fungi.iving organisms need carbon in order to: 1  Make food. 2  Green plants get their carbon from the carbon dioxide in the air, which enters the leaves and is used for photosynthesis.