Match the following coloumns and select the correct option. a. Hibernation(Coloumn-I) - (i) Snails(Couloumn-II) b. Aestivation(Coloumn-I) - (ii) Many zooplanktons(Coloumn-II) c. Migration(Coloumn-I) - (iii) Polar bears(Coloumn-II) d. Diapause(Coloumn-I) - (iv) Siberian cranes(Coloumn-II)

Options

A. a(iii), b(iv), c(i), d(ii)
B. a(iii) ,b(i) ,c(iv) ,d(ii)
C. a(i) ,b(iii) ,c(ii) ,d(iv)
D. a(iii) ,b(ii) ,c(iv) ,d(i)

Answer

To solve the matching question, we need to identify the correct pairs between the processes in Column-I and the examples in Column-II. Let's go through each option step-by-step.

### Step 1: Identify Hibernation
- **Hibernation** is a state of inactivity and metabolic depression in animals, typically during winter. Animals that hibernate enter a deep sleep to conserve energy when food is scarce due to cold temperatures.
- **Example:** Polar bears are known to hibernate during the harsh winter months.
- **Match:** a. Hibernation - (iii) Polar bears

### Step 2: Identify Aestivation
- **Aestivation** is similar to hibernation but occurs during the summer months. It is a period of dormancy in response to high temperatures and arid conditions.
- **Example:** Snails often aestivate to survive the hot and dry summer.
- **Match:** b. Aestivation - (i) Snails

### Step 3: Identify Migration
- **Migration** refers to the seasonal movement of animals from one region to another for breeding or to find food. This is not a state of dormancy but rather an active movement.
- **Example:** Siberian cranes migrate from Siberia to India during winter to escape the cold.
- **Match:** c. Migration - (iv) Siberian cranes

### Step 4: Identify Diapause
- **Diapause** is a period of suspended development in an organism, often in response to unfavorable environmental conditions. It can occur at any time of the year.
- **Example:** Many zooplanktons enter diapause to survive harsh environmental conditions.
- **Match:** d. Diapause - (ii) Many zooplanktons

### Summary of Matches
- a. Hibernation - (iii) Polar bears
- b. Aestivation - (i) Snails
- c. Migration - (iv) Siberian cranes
- d. Diapause - (ii) Many zooplanktons

### Final Answer
The correct option that matches all the pairs is:
- a - iii
- b - i
- c - iv
- d - ii