Cryptically colored animals are most likely:
1. | Batesian mimics | 2. | is palatable to predators |
3. | aquatic | 4. | top predators |
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Number of species in a community is an indicator of its:
1. | spatial heterogeneity | 2. | ecosystem productivity |
3. | species diversity | 4. | species richness |
Identify the correct statement:
1. | Eutrophic lakes contain fewer nutrients than oligotrophic lakes. |
2. | Xerarch succession is a primary succession that occurs in water bodies. |
3. | Most ecologists believe that most communities achieve stable, unchanging climax vegetation. |
4. | A mature ecosystem has greater species richness, greater biomass, and less net productivity than a younger stage of succession. |
The phenomenon of character displacement is seen in:
1. sympatric species
2. allopatric species
3. primary succession
4. secondary succession
A form of mimicry where a harmless species has evolved to imitate the warning signals of a harmful species directed at a predator of them both is called:
1. Mullerian mimicry
2. Batesian mimicry
3. cryptic coloration
4. disruptive coloration
A species that has a disproportionately large effect on its natural environment relative to its abundance is called as:
1. | keystone species | 2. | niche |
3. | competitor | 4. | predator |
Competitors can coexist indefinitely only by:
1. | niche differentiation | 2. | contest competition |
3. | interference competition | 4. | scramble competition |
Population size is unlikely to be limited by:
1. | predation | 2. | commensalism |
3. | competition | 4. | brood parasitism |
Rapid loss of nutrients from terrestrial ecosystems is not caused by:
1. | clear-cutting native forest | 2. | early seral stages |
3. | climax communities | 4. | low diversity |
Semelparous organisms:
1. produce young only late in life
2. produce a large batch of young and die
3. produce young over most of their life
4. produce a single offspring near the end of their reproductive potential