Select the correct term for the following definitions (I,ii,iii,iv).
(i) The taxon is liable to become extinct if not allowed to realise its full biotic potential by providing protection from exotic species/human exploitation/habitat deterioration/depletion of food.
(ii) The taxon has been completely eliminated or died out from earth. e.g Dodo
(iii) The taxon is facing a high risk of extinction in the wild in the near future due to decreasein its habitat, excessive predation or poaching.
(iv) They are species with naturally small populations, either localised or thinly scattered, which are always at risk from pests/pathogens/predators/exotic species.

Options

A. a) `{:((i),(ii),(iii),(iv),),("Threatened","Extinct","Endangered","Rare",):}`
B. b) `{:((i),(ii),(iii),(iv),),("Endangered","Extinct","Threatened","Rare",):}`
C. c) `{:((i),(ii),(iii),(iv),),("Extinct","Rare","Threatened","Endangered",):}`
D. d) `{:((i),(ii),(iii),(iv),),("Threatened","Extinct","Rare","Endangered",):}`

Answer

To solve the question, we need to identify the correct terms that correspond to each of the provided definitions. Let's go through each definition step by step.

### Step-by-Step Solution:

1. **Definition (i)**: "The taxon is liable to become extinct if not allowed to realise its full biotic potential by providing protection from exotic species/human exploitation/habitat deterioration/depletion of food."
- **Correct Term**: **Threatened Species**
- Explanation: Threatened species are those that are at risk of extinction if conservation measures are not taken to protect them from various threats.

2. **Definition (ii)**: "The taxon has been completely eliminated or died out from earth. e.g Dodo."
- **Correct Term**: **Extinct**
- Explanation: The term extinct refers to species that no longer exist anywhere on Earth, such as the Dodo bird.

3. **Definition (iii)**: "The taxon is facing a high risk of extinction in the wild in the near future due to decrease in its habitat, excessive predation or poaching."
- **Correct Term**: **Endangered**
- Explanation: Endangered species are those that are at a high risk of extinction in the wild due to various factors affecting their survival.

4. **Definition (iv)**: "They are species with naturally small populations, either localized or thinly scattered, which are always at risk from pests/pathogens/predators/exotic species."
- **Correct Term**: **Rare Species**
- Explanation: Rare species are characterized by their small population sizes and are vulnerable to threats from various environmental factors.

### Summary of Answers:
- (i) Threatened Species
- (ii) Extinct
- (iii) Endangered
- (iv) Rare Species

### Final Answer:
The correct terms corresponding to the definitions are:
1. Threatened
2. Extinct
3. Endangered
4. Rare