Answer:
3.
C. The circular shape
4.
D. Arw there fragments of meteorites in and around the crater?
5.
C. Triangles became extinct
I would say D hope that helped
Answer:
The integumentary system.
Explanation: The integumentary system is the on that is responsible for regulation and synthesis of the vitamin D. Remember this, Vitamin D for the skin is found when the sunlight has absorbed on the skin. Hope this helps!
