Blood coagulation is initiated by either the intrinsic or extrinsic pathway. the final step in both pathways would be:

1 answer:

3 0

The answer that best completes the statement above is this: Activation of factor X, leading to conversion of prothrombin II to thrombin IIa. This is the final step in both pathways. The thrombin, which is an enzyme in the blood plasma, does the conversion of fibrinogen (I) to fibrin (Ia). This is the one responsible in clotting. The intrinsic pathway is initiated by Factor XII. On the other hand, tissue factor during injury initiates the extrinsic pathway.

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Murrr4er [49]

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A Scientist would consider the color and the width of tree rings give clues about the past climatic conditions of a place.

Explanation:

Trees are quite sensitive to local climatic conditions like rain, temperature, etc. That is why they tend to be useful for weather experts to judge the climate variations. There are many clues seen in the rings of the trees that are helpful in studying the local climate.

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