Question

Which one is correct - a dog is an animal or the dog is an animal
The and a, an both have a se rule that is before a noun to represent a class of things then how to tell in which sentence what will come

Answer 1

I think the dog is an animal

Answer 2

It depends about the topic in which topic you had read it

If it implies a category then "the" will be used

if it is used in common sentence that it would be 'a'

hope you get it

thanks for the question

And if you have any query then ask me in the comment section