Science DemiDec Section 2

Front

What is an exotic species?

Back

An exotic species is a species that is not native to a specific location and has been introduced to that area, often causing ecological disruption.

Front

What processes run the carbon cycle?

Back

The carbon cycle includes processes such as respiration, combustion, decomposition, and photosynthesis. Sedimentation is not a process that runs the carbon cycle.

Front

What factor most likely increases the chance of extinction?

Back

Low population size is the factor that most likely increases the chance of extinction.

Front

What is a metapopulation?

Back

A metapopulation is a group of spatially separated populations of the same species that interact through dispersal.

Front

What is a Hadley cell?

Back

A Hadley cell is a large-scale atmospheric circulation pattern that occurs between the equator and 30° north or south latitude, characterized by rising warm air at the equator and descending cooler air at 30°.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of different species, genetic diversity, and ecosystem diversity.

Front

What is the role of decomposition in the carbon cycle?

Back

Decomposition breaks down dead organic matter, releasing carbon back into the atmosphere and soil, thus playing a crucial role in the carbon cycle.

Front

What is the significance of population size in conservation biology?

Back

Population size is significant in conservation biology because smaller populations are more vulnerable to extinction due to factors like genetic drift and inbreeding.

Front

What are barriers to dispersal in metapopulations?

Back

Barriers to dispersal can include physical obstacles like mountains or rivers, as well as human-made structures that prevent species from moving between habitats.

Front

What is the difference between a subpopulation and a metapopulation?

Back

A subpopulation is a smaller, localized group within a larger metapopulation, which consists of multiple subpopulations that interact.