Loss of habitat from human civilizations
Complete question:
Question: What is not one of the roles of the parasympathetic nervous system?
a) increases digestive functions
b) maintains resting heart rate
c) stimulating urination
d) controls the diameter of blood vessels
Answer:
d) controls the diameter of blood vessels
Explanation:
The activated parasympathetic nervous system is mainly associated with the rest and digest activities. This division of the autonomic nervous system triggers the digestive glands to release their secretions and stimulate the contractions of smooth muscles of the digestive tract to upregulate the processes of digestion and absorption of nutrients. In this way, the parasympathetic nervous system restores and conserves the energy of the body. It has no effect on the diameter of blood vessels.
The sympathetic nervous system triggers constriction of blood vessels that supply blood to kidneys and digestive tract during emergency conditions. It also dilates the blood vessels that supply blood to skeletal muscles, cardiac muscles and liver to facilitate increased blood supply to these tissues.
The answer is the catalyst is consumed by the reaction, so none remains at the end of the reaction.
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst. With a catalyst, reactions occur faster and require less activation energy.
The correct answer is polarity. Water's polarity<span> makes it an excellent solvent for salts, like sodium chloride, as well as other substances required by cells to carry out metabolic processes.Water is known as universal solvent as it dissolves most of the substances. This is because of it chemical composition, a water molecule has one electronegative oxygen atom and two hydrogen atoms as its constituents.</span>