Diffusion is a _distribution_ process where a solute moves from ahigherconcentration to alower<span>concentration.</span>
The heart is strengthend through cardiovascular exercise.
By the time food<span> and digestive juices reach your </span>large intestine<span>, most </span>digestion<span> and nutrient absorption has already taken place. The </span>large intestine's<span> major jobs are to absorb excess water and to prepare feces -- or undigested waste material -- for removal via the rectum and anus.</span>
