Populations

Question 1

age-structure

Answer 1

the number of males and females of each age in a population

Question 2

carrying capacity

Answer 2

largest number of individuals of a particular species that a particular environment can support

Question 3

density-independent limiting factor

Answer 3

limiting factor that affects all populations in similar ways, regardless of the population density

Question 4

demographic transition

Answer 4

change in a population from high birth and death rates to low birth and death rates

Question 5

demography

Answer 5

scientific study of human populations

Question 6

density-dependent limiting factor

Answer 6

limiting factor that depends on population density

Question 7

emigration

Answer 7

movement of individuals out of an area

Question 8

exponential growth

Answer 8

growth pattern in which the individuals in a population reproduce at a constant rate

Question 9

immigration

Answer 9

movement of individuals into an area occupied by an existing population

Question 10

limiting factor

Answer 10

factor that causes population growth to decrease

Question 11

logistic growth

Answer 11

growth pattern in which a population’s growth slows and then stops following a period of exponential growth

Question 12

population density

Answer 12

number of individuals per unit area

Question 13

population distribution

Answer 13

describes the way individuals are spaced out across their range