Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
Population Density
|
The number of individuals per unit of area.
|
|
|
Exponential Growth
|
population has a steady increase.
|
|
|
Logistic Growth
|
growth pattern slows or stops
|
|
|
Carrying Capacity
|
The number of individuals that a populations environment can support
|
|
|
Density dependent limiting factors
|
limiting factor that depends on population size.
examples: competition, predation, disease. |
|
|
Density Independent Limiting Factor
|
Limiting factor that affects all populations in similar ways
|
|
|
Predator-prey relationship
|
population regulated by predation
|
|
|
Demography
|
study of human population
|
|
|
renewable resource
|
resources that can be replaced
|
|
|
Non-renewable resources
|
resources that can not be replaced by natural processes
|
|
|
sustainable development
|
using natural resources at a rate that we do not deplete them.
|
|
|
Biodiversity
|
the total of all the organisms in the biosphere
|
|
|
habitat fragmentation
|
splitting the ecosystem into small fragments
|
|
|
invasive species
|
plants and animals that have migrated to places where they are not native
|
|
|
global warming
|
increase in the average temperatures on earth
|
|
|
emigration
|
moving out of an area
|
|
|
immigration
|
moving in to an area
|
|
|
soil erosion
|
wearing away of the surface soil.
|
|
|
desertification
|
caused by drought, farming and overgrazing.
|
|
|
Aquaculture
|
raising of aquatic animals for human consumption
|
|
|
smog
|
mixture of chemicals in the atmosphere.
|
