Answer:
The correct answer would be thrombin.
The last step in the blood clotting is the formation of a fibrin clot.
Thrombin is the serine protease (protein) enzyme which activates fibrin.
It converts the soluble fibrinogen into the insoluble fibrin which then results in the blood coagulation.
Answer:
No. when stomata is blocked, photosynthesis will stop because the CO₂ level will decline within the leaf, stopping the reactions that are light-independent.
That would be Asexual reproduction. Good luck!