What is a Consumer in Science?

A consumer in science is defined as an organism that obtains food by feeding on other organisms or organic matter due to lack of the ability to manufacture own food from inorganic sources. In the food chain, there are 3 levels of consumers in science. (1) Primary consumer, which is a herbivore that feed on producers. (2) Secondary consumers, which feed on primary consumers and/or producers. (3) tertiary consumers, which feed on secondary and primary consumers, as well as producers. You can find more information here: