The all-or-none principle states that: a. Only sensory stimuli can activate action potentials.
b. All stimuli will produce identical action potentials.
c. Only motor stimuli can activate action potentials.
d. All stimuli great enough to bring the membrane to threshold will produce identical action potentials.

All stimuli great enough to bring the membrane to threshold will produce identical action potentials

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

uh two lol