- A whale is a kind of mammal
- A cat is a kind of mammal
- So, a cat and a whale are both mammals

- A cat and a whale are both mammals
- Mammal is a kind of class of animal
- Therefore, a cat and a whale are part of the same class of animals

- An animal is a kind of living thing
- Living things in the same class are more closely related than living things in different classes
- So, animals in the same class are more closely related than animals in different classes

- A cat and a whale are part of the same class of animals
- Animals in the same class are more closely related than animals in different classes
- Therefore, a cat is more closely related to a whale than to animals of a different class

Hence, a cat is more closely related to a whale than to animals of a different class
[Question]Cats are most closely related to which of the following animals?
[Context]- An animal is a kind of living thing 
- Living things in the same class are more closely related than living things in different classes 
- A whale is a kind of mammal 
- Mammal is a kind of class of animal 
- A cat is a kind of mammal