A student gathered a sample of water from a nearby pond and looked at it under a microscope. He saw an amoeba in the sample. An amoeba is a single-celled organism that has a definite nucleus but that cannot produce its own food. Which of type of organism is an amoeba?
A.
protist
B.
plant
C.
animal
D.
bacterium
A. protist
The type of organism that an amoeba belongs to is A. protist
To determine the type of organism an amoeba belongs to, we can start by considering the characteristics mentioned in the question. It states that an amoeba is a single-celled organism that has a definite nucleus but cannot produce its own food.
Based on these characteristics, we can eliminate options B (plant) and D (bacterium) since plants are multicellular organisms and have cell walls, while bacteria are also single-celled but do not have a definite nucleus.
This leaves us with options A (protist) and C (animal). To make the final determination, we need to consider additional information on the classification of amoebas.
Amoebas are classified under the domain Eukarya, as they have a nucleus and other membrane-bound organelles. Within the domain Eukarya, they belong to the kingdom Protista. The kingdom Protista includes various eukaryotic organisms that do not fit into the categories of plants, animals, or fungi.
Therefore, the correct answer is A. protist.