The physical characteristics of influenza viruses are that they are single-stranded, RNA viruses enclosed in a helical nucleocapsid. On the outside, these viruses are enveloped. Two important proteins are found on surface of this envelope: hemagglutinin and neurominidase.
Answer:
How is your resting heart rate an indication of your level of fitness?
72 pulse to 100 is said to be normal at rest and 120 pulse when exercised. meanwhile anything above this or lower is a symptom of abnormality
Explanation:
Spend some time to yourself, enjoy your favorite tv show while eating your favorite food, hang out with people who make you feel good about yourself, get a nice massage ever now and then