Answer:
Water's extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water's role as a solvent helps cells transport and use substances like oxygen or nutrients.
Explanation:
In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
Answer:
Thick diameter, Myelinated
Explanation:
A alpha neurons conduct action potentials faster because of their large axon diameter and myelin.
- The large diameter is less resistant to the flow of ions and allows for faster conductivity.
- The myelin sheath is a layer of fat acting as to insulate the axon which helps increase signal conductance.