i think the correct answer is B considering that the channels are not always open for the protons to freely diffuse through the inner membrane.
The kingdoms<span> in the </span>domain Eukarya<span> are the following:
1.) Protista
2.) Fungi
3.) Plantae
4.) Animalia.
Hope this helps!</span>
They modify by creating an acceptable environment, and condition for plants
The sun is the main source of energy.
