The best answer is A.
As soon as the blood vessel wall is broken or damaged, a series of reactions activate platelets so that they stick to the site of injury. The platelets are able to hold to the blood vessel wall by means of a protein substance called von Willebrand's factor.
Collagen and thrombin then act at the site of injury and induce platelets to clump or stick together, forming a mesh that plugs the broken part. Special clotting protein help sequester more platelets to the plug which finally becomes a blood clot.
<span>When some amphibians mature they live on land because they eat arthropods and they find them on the land. </span>
Answer:
A new moon.
Also results in "blood" or harvest moon.
Hope it helps!
<span>The nurse would encourage breathing exercises. Breathing exercises are done by stopping all activity, sitting down, relaxing your upper body especially shoulders, perform pursed lip breathing while you work to catch your breath, then start your activity again while doing pursed lip breathing. Slow the pace if necessary.</span>
Memory B cells are the type of B cells which are formed after the primary infection.
These are important as they help in producing the more intense and accelerated immune response during secondary infection or when the same antigen or infectious agent enters the body.
They do so by producing the polyclonal response, that is, the same epitope is attacked by multiple copies of B cells.
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