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Muscle cells from the stomach have a characteristic tear-drop shape with a grainy cytoplasm containing mitochondria and a nucleus. Describe the function of these cells in the wall of the stomach

These muscle cells are known as a type of cell called smooth muscle. They serve to contract/shorten regularly in unison in a process known as peristalsis. This allows the food to be mixed with each other, as...
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Answered by Simran D. • Biology tutor
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Describe and explain how changes in the earth atmosphere, from the Precambrian Era (where the earth as occupied by volcanoes), have changed to form the surface of the Earth today and its atmosphere.

The Earth's atmospheric oxygen increased because plants and algae developed and used carbon dioxide for photosynthesis. This led to a decrease in atmospheric carbon dioxide levels. The origins of the oceans ...
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Answered by Simran D. • Chemistry tutor
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How do you complete the square for the question x^2 + 6x - 10 ?

the x squared is counted as A, the 6x is counted as B and -10 is C2) you halve the B term so in this case it would be 3x from the 6x and write it with an x in a bracket squared e.g. (x+3)^23) then you square...
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Answered by Amelia S. • Maths tutor
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Solve algebraically the simultaneous equations: 6m + n = 16 and 5m - 2n = 19

The first step of solving simultaneous equations with two unknown variables (m & n in this case) is to rearrange one of the equations so that we get one variable in terms of the other. Lets take the firs...
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Answered by Harry D. • Maths tutor
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How should you structure your personal statement when applying for Medicine?

It is important that your personal statement is personal to you, so while advice is useful it should not be taken as law. Be sure to incorporate your own style when writing your personal statement so that is...
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