“Competitive Exclusion Principle” may be true if:

1.	The competing species are equally capable
2.	Resource partitioning occurs
3.	There is only intraspecific competition
4.	Resources are limiting

One mechanism that promotes co-existence rather than exclusion amongst competing species is:

Which of the following is not an ectoparasite?
1. Lice on humans
2. Copepods on marine fishes
3. Mistletoe on other plants
4. Female Anopheles on humans

Cuckoos laying their eggs in the nests of crow is an example of:

An orchid growing as an epiphyte on a mango branch is an example of:

All the following relations are examples of commensalism except:

Lichens represent an intimate mutualistic relationship between a fungus and:

In mycorrhiza, the fungi help the plant in:
1. Synthesis of high energy carbohydrates
2. Absorption of essential nutrients from the soil
3. Nitrogen fixation
4. Biocontrol of pathogens

The fig tree is pollinated by a:

To get pollinated by a bee, the Mediterranean Orchid, Ophrys, employs:
1. Sexual deceit
2. Pseudo-copulation
3. Reward in the form of nectar
4. Place for laying eggs