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What is phagocytosis?

Phagocytosis is the process in which White Blood cells, such as neutrophils, engulf pathogens e.g. bacteria.
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Answered by Anthony I. • Biology tutor
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how do you find the equation of a line perpendicular to another line at a point?

The gradient of the perpendicular line is the negative reciprocal of the gradient of the original line. For example if the gradient of the original line is 4, the gradient of the perpendicular line is -1/4. ...
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Answered by Frankie G. • Maths tutor
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Outline and evaluate Zimbardo's research into social roles (6 marks).

Zimbardo set up a mock prison and randomly assigned the roles of guards or prisoners to 24 male students, who were deemed emotionally stabled after extensive psychological testing. To increase the realism of...
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Answered by Laura C. • Psychology tutor
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What is Pythagoras' Theorem for finding the length of a side of a triangle?

Pythagoras' Theorem can only be used on right angle triangles. To find the length of side a, the theorem can be used as follows: a 2 =h 2 -b 2 Taking the square root of the right-hand side of the equation wi...
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Answered by Eloise S. • Maths tutor
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Pourquoi est-ce la culture importante?

La culture est une partie très importante de ce qui nous rends des individuels uniques. Tout le monde à grandit dans un environment différent avec des valeurs et traditions diverses, et c'est en partie pour ...
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Answered by Eloise S. • French tutor
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