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.
Plants need energy to survive just like you, but they get their energy directly from the sun. Plants are producers. Producers are living things that can make their own food using air, light, soil, and water. Plants use a process called photosynthesis to make food. Only plants can produce their own food. That's why they are called producers. Animals that eat only plants are called herbivores. Herbivores are consumers because they eat plants to survive. Deer, grasshoppers, and rabbits are all consumers.