Water running from a drainage to basin D
Answer: By the help of the fluid delivered from the pancreas.
Explanation:
The human body is a very complex system consisting of many organ and organ system.
One of those systems is the the digestive system. By the help of this system the digestion and absorption of food takes place.
There are numerous number of enzymes involved in the digestion of the food released by various organs. The pancreatic and intestinal enzymes are secreted that work at alkaline pH, but the chyme that is secreted from the deodenum is slightly acidic yet they work together.
This is because pancreas pour enzyme into small intestine which is alkaline and it then secretes huge amount of sodium bicarbonate which neutralizes the acidity of the stomach and makes the pH optimum for the digestion of food.
Fertilizer can lead to algal bloom in aquatic ecosystems, which means that its usage may lead to oversaturation of algae in the seas and oceans. Although algae are good for these kinds of waters in limited amounts, when there are too much of them it can stifle all other life, thus having negative effects on aquatic ecosystems.
Animals or us humans because we were animals we had the first cell i think