Answer:
A) When a vessel ruptures, clotting factors become activated to permit the conversion of soluble fibrinogen to insoluble fibrin.
Explanation:
When a blood vessel suffers any type of aggression, the body begins a process of homeostasis that prevents heavy bleeding by forming an aggregate of activated platelets, red blood cells and fibrin called thrombi or clots. The clotting factors released by the liver are responsible to form the components of the clot. Over 30 proteins will go through activation and modification to form clots to prevent blood loss.
A polygenic trait would be the answer because any trait that is controlled by more than one gene or multiple genes is a polygenic trait
b
I am not that sure but I think endocrine cell don't contain blood vessels
The reason chameleons change color is to allow them to camouflage where ever they are so that they can hide better from predators.
Lion is the most dangerous cat
