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what is the structure of a skeletal muscle?

Muscle cells- are multinucleated, striated, and cylindrical in shape. What is the smallest contractile unit of a skeletal muscle called? It is a sarcomere what does the sarcomere consist of? It contains thic...
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Answered by Nikita V. • Biology tutor
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Using diagrams, explain how the incidence of an indirect tax may be affected by the price elasticity of demand.

Indirect tax - Taxes imposed by the government on goods and services aka expenditure tax. Price Elasticity of Demand - a measure of the relationship between a change in the quantity demanded of a particular ...
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Answered by Voke O. • Economics tutor
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What is the difference between an ionic and covalant bond?

A covalant bond is a very strong bond between two atoms. These atoms share a pair of electrons and form molecules. An ionic bond occurs between two ions (charged atoms). Ions form when an atom loses or gains...
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Answered by Anokhi S. • Chemistry tutor
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How does infrared spectroscopy work and where might you see it used in real life?

Infrared radiation has a longer wavelength than visible light, and is also called thermal radiation. The chemical bonds in molecules absorb infrared radiation at characteristic frequencies, which means it ca...
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Answered by Mari N. • Chemistry tutor
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factorise 3A^b+ 12A^2 B^2 + 9 A^5 B^3

3A^2 B(A +4B + 3a^3 B^2)
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Answered by Samuel H. • Maths tutor
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