Answer:
Bacteria.
Explanation:
Anthrax is caused by rod-shaped, gram-positive bacteria which is known as Bacillus anthracis. It is found in the soil (naturally) and affects domestic and wild animals.
Tetanus is caused by the bacterium known as Clostridium tetani. It is commonly present in the soil, dust, saliva, and manure.
Gonorrhea is called an STD (sexually transmitted disease). It’s caused by infection with the bacterium known as Neisseria gonorrhoeae.
