Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?

1. Mutualism

2. Predation

3. Resource partitioning

4. Competitive release

Amensalism can be represented as:

(1) Species A (-) : Species B (-)

(2) Species A (+) : Species B (0)

(3) Species A (-) : Species B (0)

(4) Species A (+) : Species B (+)

In the exponential growth equation N_t =N₀e^rt, e represents :

1. The base of natural logarithms 

2. The base of geometric logarithms

3. The base of number logarithms

4. The base of exponential logarithms

Match List-I with List-II

Choose the correct answer from the options given below :

Mycorrhiza is an example of

1. Symbiotic relationship

2. Ectoparasitism

3. Endoparasitism

4. Decomposers

Which of the following is a correct pair : -

1. Cuscuta – parasite

2. Dischidia – insectivorous

3. Opuntia – predator

4. Capsella – hydrophyte

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

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.  Pseudo pollination
4.  None

Consider the following statements (A)-(D) each with one or two blanks :
(A) Bears go into ________ (1) _ during winter to ________ (2) _ cold weather.
(B) A conical age pyramid with a broad base represents _________ (3) human population.
(C) A wasp pollinating a fig flower is an example of ________ (4) _ .
(D) An area with high levels of species richness is known as _________ (5) .

Which of the following options, gives the correct fill ups for the respective blank numbers from(1) to (5) in the statements ?

1. (1) - hibernation, (2) - escape, 3) - expanding, (5) - hot spot
2. (3) - stable, (4) - commensalism, (5) - marsh
3. (1) - aestivation, (2) - escape, (3) - stable, (4) - mutualism
4. (3) - expanding, (4) - commensalism, (5) - biodiversity park