A male insect mistakes an orchid flower to be female due to its shape and performs the act of copulation and induces pollination. This is an example of:
1.  Mimicry
2.  Pseudocopulation
3.  Pseudopollination
4.  None

Biotic and abiotic components form:
1.  Community
2.  Society
3.  Population
4.  Species

The plant having the largest flower is:
1.  Total stem parasite
2.  Epiphyte
3.  Total root parasite
4.  Partial stem parasite

What will happen if the number of organisms increased at a place:
1.  Inter-species competition
2.  Intra-species competition
3.  Both
4.  None

In a population, unrestricted reproductive capacity is called:

1. Biotic potential

2. Fertility

3. Carrying capacity

4. Birth rate

Choose the correct sequence of stages of the growth curve for Bacteria:

1. Leg, Log, stationary, Decline phase

2. Leg, Log, Stationary phase

3. Stationary, Leg, Log, Decline phase

4. Decline, Leg, Log phase

The semilog of per minute growing bacteria is plotted against time. What will the shape of the graph be:

1. Sigmoid

2. Hyperbolic

3. Ascending straight line

4. Descending straight line

Which type of association is found between entomophilous flower and pollinating agent:

1. Mutualism

2. Commensalism

3. Cooperation

4. Co-evolution

Two different species cannot live for a long duration in the same niche or habitat. This is:

1. Allen's law

2. Gloger's rule

3. Competitive exclusion principle

4. Weismann's theory

Which of the following is a correct pair: 

1. Cuscuta – parasite

2. Dischidia – insectivorous

3. Opuntia – predator

4. Capsella – hydrophyte