Which of the following statements about the fundamental and realized niche are t
ID: 179896 • Letter: W
Question
Which of the following statements about the fundamental and realized niche are true? Check all that apply:
A species' realized niche could be the same size as its fundamental niche.
A species' realized niche could be smaller than its fundamental niche.
A species' fundamental niche can be smaller than its realized niche.
The extent of the realized niche is determined, in part, by interspecific competition.
The extent of the fundamental niche is determined, in part, by conditions of the physical environment.
When species occupy the same niche, they must compete with each other for limited resources. Check each outcome that is likely to occur in the long-term if two species occupy the same niche:
Exclusion of one species from the entire niche, but not the other
Exclusion of both species from the entire niche
Persistence of both species throughout the entire niche
Division of the niche into two subdivisions, each dominated by a single species
Alternating cycles where one of two species is initially excluded but subsequently becomes dominant, excluding the other
Deposits of coal are important in the carbon cycle because they:
Lock up carbon so that it can never be returned to the atmosphere to make global warming.
Serve as a reservoir of carbon that will eventually be released into the ecosystem.
Keep humans from burning more trees by serving as fuel source.
Serve as short term storage for carbons.
Make carbon readily available to plants through their roots growing down into the coal deposit.
Explanation / Answer
1. A species realised niche could be smaller than the fundamental niche; and the extend of the realised niche is determined, in part, by inter specific competition
2. Exclusion of one species from the entire niche, but the other (driven to extinction).
Division of the niche into 2 subdivisions, each dominated by a single species (resource partitioning).
3.
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