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What is a nephron?

Nephrons are units of the kidney which are specially adapted for filtration and reabsorption of substances in the blood. Each nephron is composed of different various parts which have specific roles. T...

Answered by Laetitia H. • Biology tutor

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Explore how Frost presents decisions in ‘The Road Not Taken’.

“The Road Not Taken” is often considered Robert Frost’s most popular work. The poem revolves around the concept of decisions and internal conflict, and these tropes are presented by Frost in a vari...

Answered by David V. • English Literature tutor

19535 Views

How do I analyse 'character' in my exam?

Character analysis is an essential skill used in all English Literature GCSE exams. The ways that a character is presented in a text, their importance to the overall mea...

Answered by Hannah R. • English Literature tutor

15450 Views

Solve the simultaneous equations y = x + 3, y^2 - x^2 + 3 = -6x

Here, we have two equations involving two variables, x and y.

The question asks us to 'solve' the set of simultaneous equations.

Equivalently, it is asking us to

Answered by Anthony H. • Maths tutor

9721 Views

Why do bacteria become resistant to antibiotics?

Antiobiotics kill bacteria but bacteria can become resistant to antibiotics. This happens through a process called natural selection. Within a group/population of bacteria they will all have small diff...

Answered by Lysander G. • Biology tutor

4709 Views