Answer:
DNA is a double stranded molecule whilst RNA is a single stranded molecule
Answer: Just putting this out there in the Animalia kingdom is comprised of multicellular eukaryotes. And in this kingdom there are roughly 7.7 million unique organisms. There still 5 other kingdoms in which organisms are classified whether that be multicellular, unicellular, eukaryotic are prokaryotic organisms. Basically what I am saying is I need much more information to answer this question.
How should I know do you got a picture or something so I can see what you talking about
The best way to do that is with animal kingdoms.
The correct answer is C, tendons. They are in between the bends/gaps in our bones. I hope I helped :)