Someone who studies hydrology?
Answer:
As nouns the difference between bacteria and euglena is that bacteria is or bacteria can be (dated|medicine) an oval bacterium, as distinguished from a spherical coccus or rod-shaped bacillus while euglena is (biology) any of several protists, of the genus , that contain chloroplasts and a single flagellum.
Answer: The hammer, anvil and stirrup—also known as the malleus, incus, and ... To understand the role of these bones in hearing requires an understanding of levers. This is because the middle ear ossicles are arranged and interact with ... in an actual stirrup—is loosely attached to the oval window of the cochlea.
Explanation: