I was reading about articles in Wren & Martin and found the following explanation:
1)Use the definite article when a singular noun is meant to express a whole class.
The cow is a useful animal
[Or we can say, "cows" are useful animals]
2)Use the indefinite article in the sense of "any" to single out an individual as the representative of a class; as,
A cow is a useful animal.
Can you please explain me the difference between 1 and 2.
I also found a given below sentence in wren & martyn's exercise.
__ lion is ___ king of beasts
As per above given explanation of definite and indefinite article, I am not sure which one should be correct: "The lion" or "A lion", or both are correct.
Could you please help me understand the difference better.