BEHAVIOUR SHOWN BY AMOEBA

The amoeba does not has organs like brain or heart like us. Rather it has organelles. The main organelle is the nucleus.Although it does not has a brain it reacts to its outer environment. 

• THERMOTAXIS(response to heat) -------Amoeba moves away from heat(-ve response).
• PHOTO TAXIS(response to light)---------Amoeba moves away from light(-ve response).
• CHEMO TAXIS(response to chemicals)---Amoeba moves away from chemicals(-ve response).
• RHEOTAXIS(response to water and air current)-----(+ve response).
• GALVANOTAXIS(response to electric current)------(-ve response).
• GEOTAXIS(response to gravity)---------------------(+ve response).