Answer: positive chemotaxis
Explanation:Chemotaxis is the movement of an organism in response to a chemical stimuli in it's environment.this response is vital for animals to flee from harm and to locate useful resources. bacteria for example and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment such as glucose by swimming toward the it highest concentration of glucose which is food for it. In this case it is positive chemotaxis because the bacteria moves towards the chemical stimuli .
It may be negative if the bacteria moves away from the chemical stimuli