Population Basics
What is the number of individuals per unit area?
Population Density
What type of growth occurs under ideal conditions?
Exponential growth
What is the interaction where one organism eats another?
Predation
What happens to the birth rate as more women achieve higher education?
It decreases
What is land that can be used to grow crops?
Arable land
What happens to population growth when births equal deaths?
No growth
What is a resource that restricts population size?
Limiting resource
What is the relationship where one benefits and the other is unaffected?
Commensalism
What shows the age distribution of a population?
Population Pyramid
What is the movement of people from rural areas to cities?
Urbanization
What is the maximum population an ecosystem can support?
Carrying Capacity
What type of limiting factor is severe weather or freezing? (Density dependent or independent)
Density-independent factor
What is the interaction where one organism feeds on a host without killing it?
Parasitism
What is the average number of children a woman has? (Not a number -Vocab word)
Fertility Rate
What do we call nations with low income and weak human assets?
Least Developed Countries
What describes how individuals are arranged (clumped, random, even)?
Dispersion
What type of limiting factor is disease spreading in crowded areas? (Density independent or dependent)
Density-dependent factor
What is the relationship where both species benefit?
Mutualism
What is the study of human populations?
Demography
What resource becomes scarce when poor communities cut trees faster than they grow back?
Fuel Wood
What is the equation for population change?
Births - Deaths
What is reached when the limiting resource is used as fast as it is produced?
Carrying capacity
What principle states that one species can eliminate another with the same niche?
Competitive exclusion
During what stage of demographic transition do death rates fall and hygiene improves?
Transitional stage
What rate did the UN aim to reduce to fewer than 35 deaths per 1,000 births?
Infant mortality rate