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? 

  
1.  Stable population
2.  Declining population
3.  Expanding population
4.  Vanishing population

According to Darwin, organic evolution is due to:

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

Natality refers to:
1. Death rate
2. Birth rate
3. Number of individuals leaving the habitat
4. Number of individuals entering the habitat

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