Amoeba is a microscopic single celled organism found in pond water amobia has a cell membrane ,a rounded , dense nucleus and many small bubble like work used in its cytoplasm I'm over constantly changes its shape and positions it pushes out one or more finger like projection cold pressor sodium or false speed for movement and capture of the food amobia feeds on the same microscopic organisms than 8 senses would it pushes out pressure sodium around the food particle and uncle ate the food become stepped into the food vacuole digestive juices are secreted into the food vacuole they act on the food and breakdown it into simpler substances gradually the digested food is absorbed the absorption are used for growth maintenance and multiplication the undigested reduce of the food is expelled outside by the vacuum the basic process of digestion of the food and releases the energy is the same in all animals .

Amoeba takes in oxygen through its cell membrane and releases carbon dioxide through cell membrane only. The process is respiration only. It has no special organ for breathing or for respiration.