Cohesion<span> holds hydrogen bonds together to create </span>surface tension<span> on </span>water<span>.</span>
A reaction that emits energy
The generation of an action potential in a neuron requires the presence of<span> voltage-gated channels, which are </span><span> a class of transmembrane proteins that form ion channels that are activated by changes in the electrical membrane potential near the <span>channel.</span></span>
Mass divided by volume. I always remember it by a heart