Answer:
Same characteristics.
Step-by-step explanation:
Not all organisms have same characteristics like amoeba and parasites. Amoeba is a unicellular organism in which a single cell perform all necessary functions of life while many other organisms are multicellular in which different cells perform different functions in the body. Amoeba act as parasite because it cause disease in humans and take benefits from it but there are many beneficial organisms such as bacteria also present in human body which helps in digestion of food.