Cycles
This is the name for the movement of a specific chemical through the biosphere
What is a biogeochemical cycle?
Define a population
What is the number of an organism in an area
_______ species are the first species to repopulate an area after a disaster (such as a volcanic explosion)
Many scientists are worried that the earth is heating up too fast, resulting in ______ _______
What is global warming?
This cycle is the most well-known cycle and involves processes of evaporation, transpiration, and precipitation.
What is the Water Cycle?
________ _______ are factors that limit the growth of a population
_____ species are the species that inhabit an area permanently, at the end of a succession.
What are climax species?
__________ _____ are gases such as carbon dioxide, water vapor, and ozone, which trap heat in our atmosphere.
What are greenhouse gases?
This cycle involves "fixing" done by bacteria in order to make it usable by other organisms; although it is the primary chemical in the air we breathe, our bodies cannot use it until it is "fixed"
What is the Nitrogen Cycle?
This word refers to how many of a specific organism populate a specific area
What is population density?
______ capacity is the maximum number of a population that an area can sustain
What is carrying capacity?
__________ _______ are species of animals whose numbers are dwindling, putting them in danger of extinction
What are endangered species?
This cycle involves two chemicals; one is produced by plants and the other by animals.
What is the Oxygen and Carbon Cycle?
Name two human factors that could affect biodiversity
- Habitat loss
- Overuse of resources
- introduction of a new species
- Overuse of chemicals
___________ growth is an unrealistic model of a population's growth, where populations quickly double, which does not take limiting factors into account.
What is exponential growth?
________ _______ are animals that move into a habitat where they are not native, and cause damage to that ecosystem.
What are invasive species?
This cycle involves a chemical that is necessary for the production of DNA and RNA
What is the Phosphorus Cycle?
This is the process by which an organism (for example, algae) overpopulate an area and affect its biodiversity
What is eutrophication?
_______ growth is a realistic model for how a species will populate an area, taking into account its limiting factors.
What is logistic growth?
An __________ ________ is a concept coined in the 90's which talks about the impact that each person has on the environment.