What happens when a person with a skin fungus shares a towel with another person

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

How do antiviral drugs work? in your own words.

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions