Top answers

Explain why the body tenses up in rigor mortis

This is because when an organism dies there is no source of ATP, without this source of ATP ant myosin heads attached to the actin binding site cannot detach therefore leaving the muscles in a contracted sta...
Answered by • Biology tutor
4445 Views

Show that 2sin(x) =(4cos(x)-1)/tan(x) can be written as: 6cos^2(x)-cos(x)-2=0

Rearranging gives:4cos(x)-1 = 2sin(x) tan(x) Substituting in tan(x)=sin(x)/cos(x) gives:4cos(x)-1 = 2sin(x) (sin(x)/cos(x))2sin 2 (x)=4cos 2 (x)-4cos(x)Substituting in 2sin 2 (x) = 2-2cos 2 (x) (from the tri...
OT
Answered by Olivia T. • Maths tutor
17803 Views

Why must a cell's genetic material be replicates before nuclear division of the cell? (2 Marks)

The new cell must be a genetically identical copy of the first cell. Both daughter cells must receive a full copy of the DNA.
OT
Answered by Olivia T. • Biology tutor
2649 Views

How should I structure a 16-mark question? (AQA)

A 16-mark question can be broken down into two or three objectives: AO1 (content), AO2 (application) and AO3 (evaluation). Depending on the question you will be asked for just AO1 and AO3 or AO1, AO2 and AO3...
CS
Answered by Conor S. • Psychology tutor
5376 Views

The General Form of the equation of a circle is x^2 + y^2 + 2gx +2fy + c = 0. Find the centre of the circle and the radius of the circle in terms of g f and c.

Given a circle in the general form you can complete the square to change it into the standard form.x 2 + 2gx + y 2 +2fy +c = 0 (1). General form of an equation which has the completing the square method appl...
RS
Answered by Rushabh S. • Maths tutor
9748 Views