Q. No.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 |
The consequences of high population density of a population will include all except:
1. toxic waste accumulation
2. an increase in mortality
3. ignorance of overabundant prey by the predators
4. a reduction in reproduction
The endosymbiosis between early eukaryotes and the prokaryote lineage would be an example of:
| 1. | Commensalism | 2. | Mutualism |
| 3. | Parasitism | 4. | Competition |
Which of the following links ecology to population genetics and evolution?
| 1. | Organismic ecology | 2. | Population ecology |
| 3. | Ecosystem ecology | 4. | Biome ecology |
Under a particular set of selection pressures, organisms evolve towards the most efficient:
| 1. | Thermoregulation | 2. | Water conservation |
| 3. | Respiration | 4. | Reproduction strategy |
The invasive prickly pear cactus in Australia was brought under control with the help of:
| 1. | Snail | 2. | Moth |
| 3. | Ladybug | 4. | Fungus |
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When the feeding efficiency of one species is reduced due to the inhibitory presence of the other species, even if resources are abundant, it is called:
| 1. | Interference competition | 2. | Exploitative competition |
| 3. | Amensalism | 4. | Predation |
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Which of the following is not usually an adaptation for a parasitic mode of life?
| 1. | Loss of unnecessary sense organs |
| 2. | Presence of adhesive organs or suckers |
| 3. | Loss of the digestive system |
| 4. | Low reproductive capacity |
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