Answer:
When blood clotting is activated, fibrinogen circulating in the blood is converted to fibrin, which in turn helps to form a stable blood clot at the site of vascular disruption.
I hope this answer helps you out. If you have any questions let me know. Have a good day :).
Answer:
carbon dioxide then oxygen
Explanation:
mitochondria and chloroplasts, which have their own DNA and membranes, suggests that these organelles descended from prokaryotes that were engulfed by a larger cell.
It is C. He said that they where formed in layers.
