Geometric representation of age structure is a characteristic of:
1. Biotic community
2. Population
3. Landscape
4. Ecosystem
What type of human population is represented by the following age pyramid?
According to Darwin, organic evolution is due to:
1. | Interspecific competition. |
2. | Competition within closely related species. |
3. | Reduced feeding efficiency in one species due to the presence of interfering species. |
4. | Intraspecific competition. |
Parasites evolved special adaptations in accordance with their life styles. Choose odd one out with respect to these adaptations.
1. High reproductive capacity
2. Simple life cycle and complex morphological, anatomical features
3. Loss of unnecessary sense organs
4. Loss of digestive system
1. | pre-reproductive individuals are more than reproductive individuals. |
2. | reproductive individuals are less than post-reproductive individuals. |
3. | reproductive and pre-reproductive individuals are equal in number. |
4. | pre-reproductive individuals are less than reproductive individuals. |
Natality refers to:
1. Death rate
2. Birth rate
3. Number of individuals leaving the habitat
4. Number of individuals entering the habitat
1. | All the biological factors in the organism environment |
2. | The physical space where an organism lives |
3. | The range of temperature that the organism needs to live |
4. | The functional role played by the organism where it lives |
In nature, a given habitat has enough resources to support a maximum possible number, beyond which no further growth is possible. The limit is known as
1. Environmental resistance
2. Intrinsic rate of natural increase
3. Carrying capacity
4. Exponentially growth
Which the following pairs is wrongly matched while remaining three are correct
1. Allen’s rule – Mammals with shorter ears and limbs in colder area
2. Expanding population – High number of individual at pre-reproductive stage
3. Population density increasing – (B + I) < (D + E)
4. Carrying capacity – Logistic growth.
Find the odd one out about levels of biological
organization:-
1. Biome
2. Community
3. Species
4. Population