Read the following statements and choose the correct option
Statement 1 : The success of mammals is largely due to their ability to maintain a constant body temperature.
Statement 2 : Majority of the animals and nearly all plants cannot maintain a constant internal environment.
1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both statements are correct.
4. Both statements are incorrect.

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

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

Study the population growth curves shown in the above diagram.

Which option is the best for curve (i) and (ii)

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:

State True (T) or False (F) for the following statements and select the correct option
a. Mammals from colder climates generally have smaller ears and limbs to minimize the heat loss.
b. Experience of altitude sickness is due to high atmospheric pressure at high altitudes.
c. The size of a population for any species is not a static parameter.
d. Resources for growth for most of the animal population are infinite and become limiting sooner or later.

    a b c d
1. T T T T
2. F T T F
3. F F F F
4. T F T F