The difference between active and passive cellular transport is that active transport requires energy for the ions and molecules to move across the cell membrane whereas passive cellular transport does not an energy input.
Answer:
to test for liberation of O₂ in the light.
Explanation:
Secondary succession i think! i’m not sure though.
secondary succession: animals recolonize after a disturbance such as a fire/destruction of their habitat (deforestation)
primary succession: devastation begins in a lifeless area.
in this case, the forest had living organisms, therefore, i don’t think it can be primary.