Identify the aquatic mammal(s) from the following
(i) Balaenoptera
(ii) Equus
(iii) Delphinus
(iv) Pteropus
(v) Felis

Options

A. I and III
B. II and IV
C. V only
D. IV and V

Answer

To identify the aquatic mammals from the given list, we will analyze each option based on their scientific names and known habitats.

### Step-by-Step Solution:

1. **Identify the Scientific Names:**
- (i) Balaenoptera
- (ii) Equus
- (iii) Delphinus
- (iv) Pteropus
- (v) Felis

2. **Determine the Common Names and Habitats:**
- **Balaenoptera:** This is the scientific name for whales. Whales are aquatic mammals, living in the ocean.
- **Equus:** This is the scientific name for horses. Horses are terrestrial mammals, living on land.
- **Delphinus:** This is the scientific name for dolphins. Dolphins are also aquatic mammals, found in oceans and seas.
- **Pteropus:** This is the scientific name for flying foxes (bats). Flying foxes are terrestrial mammals, primarily found in trees.
- **Felis:** This is the scientific name for cats. Cats are terrestrial mammals, living on land.

3. **Identify Aquatic Mammals:**
- From the analysis, the aquatic mammals are:
- **Balaenoptera (whale)**
- **Delphinus (dolphin)**

4. **Conclusion:**
- The aquatic mammals from the list are **Balaenoptera** and **Delphinus**.

### Final Answer:
The aquatic mammals from the given options are **(i) Balaenoptera** and **(iii) Delphinus**.

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