Construct a food chain. Place the organism in order from producer, primary consumer to secondary consumer to tertiary consumer. (An owl eats a snake, the snake eats a squirrel, the squirrel ate a nut.)

nut is the producer the squirell the primary cosumer a snake is the secondary consumer the owl is a terriary consumer

Explanation:

They can make their own energy from sunlight. They get their energy from producers or other consumers. ... When it eats the plants it gets even more energy. when the owl eats the mouse it gets some energy from the sun, but most from the plants.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme