Population Growth
a population increases more quicklys as time goes by
What is exponential growth?
Study of human populations based on size, density, movement, distribution, and birth and death rates
What is demography?
Two factors that have contributed to an increase in the survival rate of the human population
What are technology, better medication, domestication of animals, and agriculture
Occurs when the birth rate plus immigration equals the death rate plus emigration
What is zero population growth (ZPG)?
The United States age structure is considered to be...
What is stable?
Populations are usually controlled by density-independent factors; generally small organisms that produce numerous offspring which die before they reach reproductive age
What are r-strategists?
Sing Hakuna Matata
What is Hakuna Matata, what a wonderful phrase. Hakuna Matata, ain't no passing craze. It means no worries for the rest of your days. It's our problem free philosophy. Hakuna Matata.
Occurred between 1347-1350 and killed 25 to 50 million
What is the Bubonic Plague?
Factors that affect birth rates
What are cultural, political and social influences?
Describes the area of land used by an individual, population, or country to support their lifestyle
What is ecological footprint?
The maximum number of individuals in a species that an environment can support for the long term.
What is carrying capacity?
This kept human population at a constant number below carrying capacity for thousands of years
What is environmental conditions?
Year of a sharp dip in the human population growth rate due to a man-made famine in China
What is 1963?
Factors that affect death rates
What are advances in medicine, decreased child mortality, improvements in sanitation?
If an age structure is shaped like a beehive it is said to be...
What is declining?
populations are usually controlled by density-dependent factors; generally larger organisms that produce a few offspring that have a good chance of reaching reproductive age
What are k-strategists?
Estimated world population by 2050
What is 9.8 billion?
Population change from high birth rates and death rates to low birth rates and death rates
What is demographic transition?
Goal of many countries in order to contribute to the sustainability of Earth
What is Zero Population Growth?
Leading cause of death in high income countries
What is heart disease?
When the growth of a population results in an S-shaped graph, and the population levels off at a limit called the carrying capacity.
What is logistic growth?
Three factors that influence population size
What are reproductive strategies, age structure, and carrying capacity?
Average life expectancy in the US
What is >70 years?
If an age structure is shaped like a triangle it is said to be...
What is growing?
Who says 'Just keep swimming..."
Who is Dory?