Through resource partitioning:
1. Two species can compete for the same prey
2. Slight variation in niche allow closely related species to co-exist in the same habitat
3. Competitive exclusion results in the success of the superior species
4. Two species undergo character displacement that allows them to compete
When the value of 'r' is significantly low as compared to another species, it is better known by:
(1) Competition exclusion
(2) Interference competition
(3) Resource partition
(4) Competitive release
The four levels of biological organization to which Ecology is basically concerned are:
1. Macromolecules-tissues-populations-biome
2. Macromolecules-organisms-population-biome
3. Tissues-organs-community-biome
4. Organisms-Populations-Community-Biome
Physiological ecology
1. works at the organismic level
2. Tries to understand the adaptation with respect to survival only
3. Tries to understand the adaptation with respect to reproduction only
4. None of these
A wide variety of habitats within a biome can be a result of
1. Regional variation of temperature and precipitation.
2. Local variation of temperature and precipitation
3. Both 1 and 2
4. Natural selection
A. | Life exists in compost pits, permafrost polar regions. |
B. | Our intestine host only 3-10 microbes. |
C. | Major biomes of India include desert rainforest and tundra. |
D. | The important physicochemical components alone characterise different habitats. |
How many of the above statements is/are wrong?
1. Three
2. Two
3. Only one
4. All four
Calculate the birth rate of a population which has 20 individuals at time t, after one year 8 individuals have also counted along with those 20.
1. .3
2. 0.2
3. 0.4
4. 0.8
The size of the population for any species is
1. Dynamic
2. Static
3. Both
4. Always Nt
Population Ecology links
1. Ecology to Evolution
2. Ecology to Genetics
3. Ecology to population Genetics and evolution
4. Ecology to diversity and evolution
Under normal circumstances which of the following affects population density most?
1. Nt
2. B
3. I
4. E