Which of the following definitions is incorrect? which of the following definitions is incorrect? pandemic: a. a disease that affects a large number of people in the world in a short time epidemic: b.a disease that is constantly present across the world endemic: c.a disease that is constantly present in a population incidence: d.number of new cases of a disease

Correct question:

Which of the following definitions is INCORRECT?

A. pandemic: a disease that affects a large number of people in the world in a short time

B. epidemic: a disease that is endemic across the world

C. endemic: a disease that is constantly present in a population

D. incidence: number of new cases of a disease

B. epidemic: a disease that is endemic across the world

Explanation:

A disease or infection is categorized as an epidemic when it affects a relatively large number of members of a population or locality. The spread of epidemic diseases is usually associated with specific conditions such as entry of a new pathogen in the population, contaminated food or water supply, etc. For example, the supply of contaminated water may affect a large number of individuals present in that locality with cholera. In this case, cholera will be an epidemic.

The correct answer is A. bicycling

Explanation:

The ability of lungs and heart to supply sufficient oxygen for the working muscle during an extended period of aerobic activity is called cardiorespiratory fitness.

Aerobic exercise is the best exercise that can help in improving cardiorespiratory fitness. Aerobic exercise helps in increasing cardiorespiratory fitness because during aerobic exercise the respiratory rate and heart rate enhances.  

Bicycling is one of the best aerobic exercises by which we can improve our cardiorespiratory fitness. Therefore the correct answer is A.