Red blood cells are responsible for the distribution of oxygen to other cells in the body.
C. In anaerobic exercise muscles do not use oxygen. In aerobic exercise muscle use oxygen.
There is no defined limit on the capacity of the brain. The brain's capacity cannot be measured as it is not subject to a defined "space" where the memory is kept, and it is not such that each neuron is responsible for a single memory. The brain has complex mechanisms of memory storage, that even improve if trained.
<span>phospholipid bilayer, which is two layers of phospholipids back-to-back</span>
