Final answer:
The participle 'buzzing' is in the present form and describes the noun 'noise' in the given sentence.
Step-by-step explanation:
The participle in the given sentence is buzzing. It is in the PRESENT form since it is describing the action that the mosquito is currently making. The noun it describes is noise. The sentence can be rewritten as: The mosquito made a buzzing noise in my ear.
Learn more about Participles in English