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Describe the functional importance of the heart as a pump

The heart made up of four chambers; two atria at the top and two ventricles at the bottom. There are effectively two pumps. The pump on the right side of the heart sends blood to the lungs to be oxygenated. ...
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Answered by Emily W. • Biology tutor
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When is the imperfect tense used and how do you form it?

The imperfect tense is used to express the idea that something is happened continuously in the past. It translates in English as "I was X-ing". To form the imperfect tense, you take the present ten...
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Answered by Ally N. • French tutor
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What is the difference between gravitational potential energy and gravitational field strength?

Gravitational Potential Energy is the work done in moving a mass from infinity to a point in a gravitational field. On the other hand, Gravitational Field Strength is the force exerted per unit mass on a sma...
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Answered by Andrea B. • Physics tutor
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What is Pythagoras' theorem and what can it be used to figure out?

Pythagoras' theorem states that in any right-angled triangle the square of the longest side (called the HYPOTENUSE) is equal to the sum of the squares of the other two shorter sides. If the two shortest side...
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Answered by Alice F. • Maths tutor
4754 Views

How does The Grapes of Wrath compare with The Great Gatsby in the presentation of America in the 20th century?

Undeniably, one of the most noticeable differences between the texts is that they portray America in vastly contrasting economic states. Not only was the 20s a significantly richer and more lavish decade, bu...
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