👉 Hydrotactic is a term used in the field of marine biology that refers to certain types of bacteria that are capable of utilizing hydrogen as an energy source. These bacteria have the ability to split water molecules into hydrogen and oxygen, which can be utilized by other organisms living in the environment. The hydrotactic bacteria are found in areas where there is a high concentration of oxygen, such as at the bottom of marine sediments or in the ocean. They are able to utilize hydrogen as an
