The image shows three petri dishes with a black background. The dishes are circular in shape and have a white label on the top right corner that reads "A 3/3". Each dish has a small amount of white substance on it, which appears to be a type of bacteria or mold. The substance is round and has a slightly wrinkled texture. The dish on the left has a larger white substance, while the dish in the middle has a smaller white substance. All three dishes appear to be empty and are arranged in a triangular formation.