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Describe how a vaccine leads to production of antibody against the disease (4 marks)

This question is asking for an outline of how antibody is produced in an immune response, and for the 4 marks, we need to identify 4 or more steps using key words in this process. This question could also...

Answered by Erin P. • Biology tutor

2943 Views

A line intercepts point A at (4,4) and point B (8,12). Find the gradient and the intercept of the line.

First, calculate the gradient of the line (m) using the equation using dy / dx.m = dy / dx = (y_2 - y_1) / (x_2 - x_1) = (12 - 4) / (8 - 4) = 8 / 4 = 2.As you now know the gradient of the line and points ...

Answered by Alex F. • Maths tutor

2510 Views

What are the key components of Kant's categorical imperative?

Kant's categorical imperative enables us to decide how we ought to act, regardless of the consequences. It, therefore, differs to a hypothetical imperative (if I want X, I ought to do Y) and is strictly d...

Answered by Rahul S. • Philosophy tutor

2507 Views

Analyse how Shakespeare presents Macbeth's decent into madness

Macbeth is a play about a characters demise. He starts as an ambitious, hungry, and shrewd character with a thirst for power. As he transforms into the King he yearns to be, he is then consumed by the for...

Answered by Claudia H. • English tutor

2916 Views

ABC is a right-angled triangle (B being the right angle). Is AB=12 and BC=9, What is Angle A? (3.s.f.)

If you having trouble visualising it, try drawing a diagram. Start with SohCahToa. As A is opposite side BC=9, Opposite =9 As AB=12 is adjacent to A, Adjacent=12 Both opp...

Answered by Catherine P. • Maths tutor

2628 Views