Plants offer rewards to animals in the form of pollen and nectar and the animals facilitate the pollination process. This is an example of :
If there are 250 snails in a pond, and within a year their number increases to 2500 by reproduction. What should be their birth rate per snail per year ?
Given below are two statements:
Statement I : Gause’s ‘Competitive Exclusion Principle’ states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually.
Statement II : In general, carnivores are more adversely affected by competition than herbivores.
In the light of the above statements, choose the correct answer from the options given below:
Match List I with List II.
| List I (Interacting species) |
List II (Name of interaction) |
||
|---|---|---|---|
| (A) | A Leopard and a Lion in a forest/grassland | (I) | Competition |
| (B) | A Cuckoo laying egg in a Crow's nest | (II) | Brood parasitism |
| (C) | Fungi and root of a higher plant in Mycorrhizae | (III) | Mutualism |
| (D) | A cattle egret and a Cattle in a field | (IV) | Commensalism |
Choose the correct answer from the options given below.