Density-Independent Factors That Regulate Population Size Include All of the Following

question 89

Multiple Choice

Density-independent factors that regulate population size include all of the following EXCEPT:

• A) drought
• B) severe storms
• C) supply of food
• D) fire in a grassland biome
• E) extreme cold, or moderate cold at an especially critical time of year

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Definitions:

Nitrogen Fixation

The process by which certain bacteria convert atmospheric nitrogen into ammonia, making it available for plants and other organisms.

Earth's Tilt

The angle between Earth's rotational axis and its orbital axis, which significantly influences seasonal changes and climate.

Denitrification

A microbial process by which nitrogen in the soil is converted back into gaseous nitrogen, removing it from the ecosystem.

ENSO Event

A periodic variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean, affecting climate globally (El Niño-Southern Oscillation).