Hello
Humans conduct internal fertilisation.
Thanks
Answer:
I would say We don't have enough evidence or Cell theory is still changing.
Explanation:
There are so many cells in everything so it's almost impossible to know exactly what is going on. Theories about cells have been going on for over 500 years, and we still don't know exactly what is what.
The permeability of the postsynaptic neuron changes; consequently, its membrane potential is changed as well
