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Biology Final 3

Terms in this set (30)

Symbiosis
An organisms interactions with other organisms is referred to as it's?
Habitat
The specific place where an organism lives out its life is a?
Biome
A group of ecosystems that have the same climate and climax community
Tropical rain forest
Most amount of species and precipitation
Grassland
Fires, grazing animals, and drought keep this biome for you have many trees
Taiga
Made up of coniferous evergreen
Temperate deciduous forest
Composed mostly of trees that lose their leaves
Tundra
Has a layer of permafrost below the soil surface
Desert
Lowest amount of annual precipitation
Freshwater
Less than 1% salt content
Marine
Source of most of the worlds rainfall
J curve
If the human population is growing exponentially, what shape with the curve follow in a population graph?
Population Pyramid
Graphical illustration that shows the distribution of various age groups/cohorts, high birth rate, and high mortality rate
Arable land
Land that can be used for growing crops/food
Carrying capacity
The limit that a population in an area can reach
When the carrying capacity is reached the resources of the population will not be sustainable. There will be competition and the population will decrease.People will start there will be wars etc. the population will have to decrease due to the lack of space food and water
How does carrying capacity affect population?
Birth control pill/contraception
What helped slow down the population growth in 1962?
7.2 billion
What is the worlds population
There is population growth. The population has a high birth rate and the country has a large number of young people
If a country has a large number of individuals on the bottom of the population pyramid, what does that indicate about the population?
The birthrate is stable and older people are living longer
The pyramid for the United States is fairly straight up-and-down creating a rectangle shape what does this indicate about the population?
The population will have to compete for resources and population will have to decrease .when their footprint is larger than their bio capacity they are operating at a deficit and they will run out of resources
If a country is using more resources than the biocapacity allows, what will eventually happen?
Ecological footprint
How much Land it takes to support. Our demand on the earth resources is?
Ecological deficit
Using more than you have available. 2B8D66EEThis is when our ecological footprint is greater then biocapacity
Ecological reserve
Using less than is available. This is when our ecological footprint is smaller than our biocapacity
Bio capacity
These are the earth's assets. This is earths biological productive land areas that can absorb waste and common emissions.
Sustainability
The ability to continue a determined behavior indefinitely
Ecological sustainability vs ecological sustainability
The rate of renewable resource harvest and non renewal resource depletion. If it cannot be continued indefinitely, then it is not sustainable. If it can be continued indefinitely then it is sustainable.
Ecological sustainability
Can be continued indefinitely
Ecological unsustainabity
Cannot be continued indefinitely
False
(True or False) ecological sustainability is when a resource cannot be renewed and will eventually run out.
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