Answer - Theory
Reasoning - Your best bet and term to describe the evolution by natural selection is theory as to still scientific theory/research is still ongoing and changes can be made in a different direction.
Process, transmit, and receive nerve impulses (electrical signals) from periphery to central nervous system.
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.
Perhaps the best known unconfined aquifer is the Ogallala. In many places this aquifer is near the surface and recharge depends on water that collects at the surface in wetlands. ... A playa lake is a naturally occurring wetland (averaging about 17 acres) formed when rain fills small depressions in the prairie. (https://texasaquaticscience.org/aquifers-springs-aquatic-science-texas/)
Hope this helps
