This may be a trick question, but I will jump right in and say, "All of them".
the Mandy
Its energy is derived from the nutrients in the food it consumes.
heterotroph
Controlling the number of food calories one consumes.
From the food they consume.
fish food for goldfish
the food chain for the loon starts with the sun where the suns rays are absorbed by seaweed which then various breeds of fish eat and then the loon consumes the fish which then the loon is consumed by its predators
Fish obtain energy from their food, which consists of plants or other animals. Insects also get their energy from their food, such as nectar, pollen, or other insects. Both fish and insects convert the energy from their food into metabolic energy that fuels their activities and bodily functions.
The flow of energy from one organism to another is depicted by a food chain or food web. In a food chain, energy is transferred as one organism consumes another. This movement of energy is essential for the functioning of ecosystems.
yes
Heterotrophs are organisms that obtain energy by consuming other organisms or organic matter. They rely on external sources of energy such as plants or other animals to meet their energy needs through processes like eating and digestion.
From the food it eats.