Answer:
The sentence has one adjective and no articles.
Step-by-step explanation:
An adjective is a word that modifies or describes a noun or a pronoun. And articles are determiners or noun markers that tell us the identifiability of the nouns. We have only three articles in gramma- a, an, the.
In the given sentence "there are approximately sixty different species", there is just one adjective. The adjective is "different", describing the noun 'species'. And there are no articles in the sentence.
Thus, the correct answer is the sentence has one adjective and no articles.