Question

A butterfly has/have beautiful wings

Answer 1

A butterfly has beautiful wings

• Has/Have are considered to be Past participles.
• "Has" is used whenever the subject is a singular one.
• "Have" is used whenever the subject is plural one.
• Past participle is a tense form where the action performed is already completed. This is used to depict an action which is already done in the past.
• Has and Have can indicate the possession of an object.
• Has and Have can combine with other verbs to indicate more complex relationships with time.

Therefore, Past participle form of tense is used wherever the subject's action is already completed in the past.

Answer 2

Answer:

cockroach have tenticle is right