1. Observa la figura anterior e identifica cuatro cadenas tróficas en la figura. 2. En la siguiente tabla señala los niveles tróficos para cada una de las cadenas tróficas que
identificaste.
Cuarto
Tercero
Segundo
Primero
Nivel Trófico
Cadena 1
Cadena 2
Cadena 3
Cadena 4​

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

easy

explanation:

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds