Answer:
Population distribution is the spreading of people over an area of land, while population density is the number of people per unit land.
Explanation:
The distribution of population is how people are distributed over an area of land and the population density indicates how densely populated an area is and it is often determined by the number of people per square mile.
Respiratory rate: A person's respiratory rate is the number of breaths you take per minute. The normal respiration rate for an adult at rest is 12 to 20 breaths per minute. A respiration rate under 12 or over 25 breaths per minute while resting is considered abnormal.
What phrase are u talking about ?
Trisomy 21 (nondisjunction) Down syndrome is usually caused by an error in cell division called "nondisjunction." Nondisjunction results in an embryo with three copies of chromosome 21 instead of the usual two. Prior to or at conception, a pair of 21st chromosomes in either the sperm or the egg fails to separate.
