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Describe the sequence of events of the clotting cascade that will lead to a blood clot in a damaged blood vessel

Thromboplastin is released from damaged tissue and platelets, which activates an enzyme that catalyses the conversation of the protein prothrombin to thrombin. This occurs in the presence of Calcium and V...

Answered by Laura T. • Biology tutor

4389 Views

When writing an essay, how would you best prepare an outline?

For the purposes of detailing how to best prepare an essay outline, I will be using the question "Discuss the theme of 'ghosts' in John Donne's poetry" as an example. Once you have chosen your q...

Answered by Blandine H. • English tutor

1063 Views

We have two straight lines AB and CD. The coordinates of A,B and C are A(1,3), B(5,9) and C(0,8). The point D lies on the line AB and is halfway between points A and B. Is the line CD perpendicular to AB?

First of all we need to find the coordinates of the point D. As D is halfway between the two points A and B, to find the midpoint of a line segment, we add the x coordinates then divide by 2, and add the ...

Answered by Bryony H. • Maths tutor

5732 Views

Expliquez la différence entre le COD et le COI

Le COD, ou complément d’objet directe désigne l’objet d’une action. Il n’est pas précédé par une préposition.
Pour le trouver il faut répondre a la question ...

Answered by Tamara M. • French tutor

3213 Views

What does it mean for an argument to be valid?

An argument is valid if and only if the following is impossible: all of the premises are true and the conclusion is false. E.g. the argument below is valid:(1) All men are mortal(2) Socra...

Answered by Oliver H. • Philosophy tutor

1830 Views