AP BIOLOGY

Detailed explanation-1: -Population size is the number of individuals in a population. Population density is the average number of individuals per unit of area or volume. The pattern of spacing of individuals in a population may be affected by the characteristics of a species or its environment.

Detailed explanation-2: -Population growth is the increase in the number of people in a population of the dispersed groups and it is determined by births, deaths, immigration, and emigration. Immigration is the movement of individuals into a population from other areas. This increases the population size and growth rate.

Detailed explanation-3: -Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7.9 billion in 2020.

Detailed explanation-4: -Population density is the average number of individuals in a population per unit of area or volume. For example, a population of 100 insects that live in an area of 100 square meters has a density of 1 insect per square meter.

Detailed explanation-5: -Population size refers to the total number of persons in a group. The average number of people per unit of area or volume is known as population density. The qualities of a species or its environment may influence the pattern of spacing of individuals in a population. Ans.