Q. No.Cryptically colored animals are most likely:
1. Batesian mimics 2. is palatable to predators 3. aquatic 4. top predators
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
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