The food (or energy) can be transferred from one organism to the other through food chains.
This transfer of food energy from the source in plants through a series of organism with repeated eating and being eaten is known as a food chain.
The starting point of a food chain is a category of organisms called producers and the ending point of a food chain is a category of organisms called top carnivores.
FOOD WEB
Food Web is the inter-connected food chains operation in an ecosystem which establishes a network of relationships between various species. It consists of many food chains.
The network of a large number of food chains existing in an ecosystem is called a food web.
TROPHIC LEVELS
The various steps in a food chain at which the transfer or flow of food (or energy) takes place are called trophic levels.
