As the two tectonic plates shift, fissures periodically form in the crust that allow molten rock from underground to surface as lava, creating Iceland's many volcanoes.
There are several different processes, including glycolysis and the Calvin Cycle, but the umbrella term for getting energy from glucose is cellular respiration.
It's empty or fairly large, making the sounds from your hands bounce of the walls and therefore having it echo
C membrane with the help of a channel protein
The brain. Hope this helps:)