In the image below, the yellow arrow is pointing to an area…
In the image below, the yellow arrow is pointing to an area that is convex and is generally known as a , the black arrow is pointing to a depression or groove called a , “A” is referring to , “B” is referring to , and the large blue oval is encircling the left . The white arrow is pointing to the . *Type in one word per space. Use lowercase letters only. *Do not add a space or punctuation before or after each word.