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Why the human heart is described as a "double pump" and what is the physiological significance of this?

The human heart is described as a double pump because blood passes through it and gets pumped out of it twice in a single circuit of the circulatory system. A normal heart is separated into two halves, ri...

JF
Answered by James F. Biology tutor
15448 Views

The multi-store model is one theory of memory. Describe two criticisms of the way in which the multi-store model explains how we remember things

The multi-store model of memory has been criticised for placing too much emphasis on the role of rehearsal. Whilst rehearsal is important in moving information from short-term memory to long-term ...

EP
Answered by Emily P. Psychology tutor
17877 Views

Solve the simultaneous equations: 3x+2y=11, 2x-5y=1.

Step 1) Label Equations 1) 3x+2y=11 2) 2x-5y=1 Step 2) Multiply so that one variable has same coefficient in both equations.1)x5 15x+10y=55 ...

HB
Answered by Harry B. Maths tutor
5451 Views

Factorise x^2 + 4x +3

First take the 4x - the two numbers that will be +/- to the x in the brackets will need to add to form this number, so the possibilities are 1 and 3 or 2 and 2.Now take the 3 - the two nu...

JS
Answered by James S. Maths tutor
8293 Views

How to Solve Two Simultaneous Equations

I will use the whiteboard in order to explain the answer to my question. The format will follow:Understanding what it means to 'solve' one equationUnderstanding what it means to 'solve' two equationsVaria...

MI
Answered by Matthew I. Maths tutor
3087 Views

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