Amoeba and Hydra are two different organisms with different modes of feeding.
Amoeba is a unicellular organism that belongs to the group of protozoans. It is a heterotroph, which means that it obtains its food by ingesting other organisms or organic matter. Amoeba feeds by extending its pseudopodia (false feet) around its prey and engulfing it, forming a food vacuole inside the cell. The food is then broken down by enzymes in the vacuole and the nutrients are absorbed by the cell.
Hydra, on the other hand, is a multicellular organism that belongs to the group of cnidarians. It is a holophytic organism, which means that it obtains its food by photosynthesis. Hydra contains chloroplasts, which are responsible for capturing light energy and producing food in the form of glucose. However, Hydra can also be a heterotroph and feed on small aquatic organisms, such as plankton.
Therefore, the correct answer to the question is: Amoeba is a heterotrophic organism, while Hydra is a holophytic and heterotrophic organism.