Define each word using its Greek or Latin roots. Be sure to number each definition. Ex. aquamarine

aqua means water and mar means sea so aquamarine has to do with seawater, it is the color of seawater.

Define the following terms:

11. Biology

12. Photograph

13. Hydrophobia

14. Megaphone

15. Tricycle

11.Biology = The Greek root word bio means 'life. ' Some common English vocabulary words that come from this root word include biological, biography, and amphibian. One easy word that is helpful in remembering bio is biology, or the study of 'life.
12.Photograph = The word "photography" was created from the Greek roots φωτός (phōto's), genitive of φῶς (phōs), "light" and γραφή (graphé) "representation by means of lines" or "drawing", together meaning "drawing with light".
13.Hydrophobia= hydrophobia derives from hydr-, stem of hydros "water" + phobos "dread, fear". ... With the root hydr- we have words such as hydroelectricity, hydropower, hydrometer or hydroplane.
14.Megaphone= funnel-like instrument for assisting hearing or magnifying the voice," 1878, coined (perhaps by Thomas Edison, who invented it) from Greek megas "great" (see mega-) + phone "voice" (from PIE root *bha- (2) "to speak, tell, say").
15.Tricycle = #77 tri → three
You can easily remember that the prefix tri- means “three” via the word tricycle, which is a bicycle with “three” wheels instead of two that promotes stability for young riders.

They are different because conan doyle shows he conflict between the to storys

That’s really weird? ?