So what would happen if photosynthesis suddenly stopped happening? If photosynthesis came to an abrupt end, most plants would die within short order. ... That's because for photosynthesis to cease to exist, Earth would have to plunge into darkness.
Answer:
changing environment
Explanation:
If the species fails to adapt, it will die off.
The permeability of the postsynaptic neuron changes; consequently, its membrane potential is changed as well