Examlex
Variables measured on a nominal level are called qualitative variables.
Carnivore
An organism that primarily eats other animals as its main source of food.
Autotroph
Autotrophs are organisms that produce their own food from inorganic substances using light or chemical energy, forming the base of the food chain in ecosystems.
Heterotrophs
Organisms that obtain their energy by consuming other organisms, unable to synthesize their own food from inorganic sources.
Tertiary Consumer
An organism that typically eats secondary consumers, residing at or near the top of a food chain and usually a carnivore or an omnivore.
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