Explanation:
it is unique in being the only human bone that is not attached by joints to any other bone, but is suspended in the neck by muscles and ligaments alone.
Answer:
it is b because rest are biotic and also cause it is the only biotic thing available
Explanation:
I know it is right
Answer:
DNA contains the sugar deoxyribose, while RNA contains the sugar ribose
Explanation:
The cell which located on the surface of an endoplasmic reticulum is ribosomes
Answer: Index fossils are used to identify layers of rocks. The layers will form an arrangement that relates to their age. In simpler terms, a layer that contains fossils are unique to that certain layer.
Index fossils are fossils that are mostly used by scientists due to it being easily found anywhere around the world and in abundant amounts. It can also be easily identified since they are fossils of widely varied organisms that lived during one short time period.