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Focus on the genre of a magazine article - a relevant title aimed at whichever age group you choose to focus on (can be humourous or informative) as well as the page layout expected with an author's name....

Short answer: Dead and/or inactive pathogens. Explanation (also to a further question: "How does this prevent infection later?") : Pathogens are microorganisms...

To begin to solve this question, we need to re-arrange the equations presented so they both appear in terms of 3y=. This will allow us to get a value for y and thus a value for x. First re-arrange the fir...

One way to solve simultaneous equations is to express x in terms of y (or vice versa) and solve your new equation to find one of the values. You can then substitute this into your equation to work out the...

Persists in the environment/soil/water. Enters the food chain and builds up the higher up the chain you move. Can enter human tissue eventually.