The given age pyramid represents a:
1. Fast expanding population
2. Slowly expanding population
3. Stable population
4. Declining population
A country with a high rate of population growth took measures to reduce it. The figure below shows age sex pyramids of populations. A and B twenty years apart. Select the correct interpretation about them.
Interpretations
1. 'A' is more recent and shows slight reduction in the growth rate
2. 'B' is earlier pyramid and shows stabilized growth rate
3. 'B' is more recent showing that population is very young
4. 'A' is the earlier pyramid and no change has occured in the growth rate
Geometric representation of age structure is a characteristic of:
1. Biotic community
2. Population
3. Landscape
4. Ecosystem
Annual migration does not occur in the case of:
1. Salmon
2. Siberian crane
3. Salamander
4. Arctic tern
If the age distribution (percent individuals of a given age or age group) is plotted for population, the resulting structure is called:
(1) Survivorship curve
(2) Life table
(3) Age pyramid
(4) Logistic model
The age distribution of a population is determined by:
(1) Timing of birth
(2) Timing of death
(3) The rate at which the population is growing
(4) All are correct
A broad-based, pyramid shaped age structure is characteristic of a population that is:
1. Growing rapidly
2. At carrying capacity
3. Stable
4. Shrinking
What type of human population is represented by the following age pyramid?
1. | Natality | 2. | Mortality |
3. | Immigration | 4. | Emigration |
The process of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is referred as:
1. Association
2. Emigration
3. Competition
4. Immigration