Explanation:
Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.
Answer:
the sperm fertilizing the egg
Explanation:
It will take 15 years for Della to be in the same risk of
non-smoking persons in risk of cardiovascular disease. As you quit smoking, the
lungs will start to purify itself, but it will take some time. On the other
hand, it cannot be assured that the lungs may be totally restored, more or less
it would just be clean over a period of time.
Biological fitness or darwinian fitness there the same thing
Nitrogen is the most important component of DNA, protein, enzymes etc. Its recycling in the atmosphere is necessary, beacuse free nitrogen in the atmosphere balance the atmosphere composition. In soil it is important for fertility needed for plant growth. In heterotrophs it is an essential component of organic compounds.
