La energía tiene las mismas unidades que la magnitud trabajo. En el Sistema Internacional de unidades (SI) la unidad de trabajo y de energía es el julio (J), definido como el trabajo realizado por la fuerza de un new- ton cuando desplaza su punto de aplicación un metro. ... Su equivalencia es: 1 kWh = 36 × 105 J.
La energía no se puede medir directamente. Bueno, pues medimos la energía comparando la cantidad que hace falta para hacer las cosas con una cantidad fija. A esta cantidad fija le llamamos unidad de energía.
Enzymes.
Enzymes are responsible to make reactions hard to take place, or even very unlikely to happen, to actually happen. They are proteins that have normally an active binding site where molecules may connect to and preform the reaction. The necessary energy to make a reaction occur is less when aided by enzymes and that's what makes of them catalysts so that reactions may occur even when in lower temperatures.
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. Any mold fossil can potentially form a cast mold.
Explanation:
I'm totally sure that the next step is A)Gametophyte. As it's the most suitable from given above.