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(b) Cigarette smoke contains nicotine. Nicotine is a vasoconstrictor that reduces the diameter of some blood vessels. (i) Using this information, explain why smoking increases the risk of developing cardiovascular disease (CVD). How do I approach this?

Good question. You must think about these questions in progressive steps. The first step is given - vasoconstriction. What does this cause? A reduction in the diameter of the blood vessel. So you've got t...

MA
Answered by Michael A. Biology tutor
4545 Views

What is a personal statement?

A personal statement is your way to convey your passion for your chosen subject to your selected universities. It is roughly one side of A4 paper in length and the maximum length for your personal stateme...

EP
1805 Views

FIRSTLY: John has a slice of pizza in the exact shape of an isosceles triangle. 2 sides measure Y + 5 and 1 side measures Y – 2. Write an expression for the total perimeter. SECONDLY: Multiply out the following brackets: (3Y + 8)(3Y + 2)

First part: An isosceles triangle has 2 sides of the same length and 1 side of a different length. 2 of these sides: 2 x (Y + 5) = 2Y + 10. 1 side: Y – 2. The perimeter is the tota...

RW
Answered by Rosie W. Maths tutor
3006 Views

Quali sono le tre funzioni logiche del verbo essere?

Nelle seguenti tre frasi possiamo dedurre quali sono le 3 funzioni logiche del verbo essere nella lingua italiana.1- Verbo essere come COPULA (predicato nominale):Maria è intelligente e (...

RI
Answered by Raffaela I. Italian tutor
46070 Views

A ladder 6·8m long is leaning against a wall, as shown in the diagram. The foot of the ladder is 1·5m from the wall. Calculate the distance the ladder reaches up the wall. Give your answer to a sensible degree of accuracy.

There's a lot of information here so we should start out by drawing up a diagram. From this we can see that we have a right-angled triangle, and we know two of the angles and want to work out a third. The...

RS
Answered by Rohan S. Maths tutor
3936 Views

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