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Why is the human circulation em called a double circulation system?

In the double circulation system there are two routes that the blood can take: 1. Through the lungs 2. To the rest of the body The blood starting in the heart has no oxygen in it. It flows from the heart and...
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Answered by Elizabeth L. • Biology tutor
16767 Views

What is the difference between osmosis and active transport?

First of all we have to understand that there are concentration gradients between cells and the outside. A higher concentration of solute is when there is more solute (eg salt) dissolved in the solvent (e.g ...
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Answered by Elizabeth L. • Biology tutor
55074 Views

How do I write a history essay?

This can be variable depending on your exam board, and what your teacher wants from you, but there are some things that never change. Structure and Plan It's best to begin the essay with a structure in mind....
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Answered by Giulia Z. • History tutor
4322 Views

What happens to the blood when it enters the heart?

The heart has four chambers; the right ventricle and atrium, and the left ventricle and atrium. Deoxygenated blood, once it has travelled the entire body, enters the heart from the vena cava into the right a...
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Answered by Giulia Z. • Biology tutor
4742 Views

How am I able to recognise what kind of genre an excerpt of sacred vocal music may be from

There are a number of ways to devise what kind of larger work a short excerpt may be from. Let's think of the main Sacred vocal work types: 1)Mass 2)Oratorio/ Passion 3) Anthem/ Motet To be able to identify ...
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Answered by Mary F. • Music tutor
6612 Views