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What are the stages of drug testing?

The first stage when a new drug is developed is to model how it is expected to behave in the human body, test animals and individual cells on a computer. This model is based on how similar drugs work, and ho...
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Answered by Savannah W. • Biology tutor
21888 Views

What is the difference between DNA and RNA?

DNA is a double helix, made up of two polynucleotide strands. RNA is comprised of only one polynucleotide strand. The sugar in the sugar-phosphate backbone of DNA is deoxyribose, whereas ribose is present in...
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Answered by Claire B. • Biology tutor
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Describe and explain the function alveoli

Just to some basics:Gas exchange of carbon dioxide and oxygen occurs in the alveoli, small sac shaped branches of the lungs, grouped together similarly to grapes. When you breathe in, oxygen from the inhaled...
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Answered by Anh-Duong V. • Biology tutor
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What is an Algorithm?

An algorithm is simply a list of well-defined instructions, detailing a step-by-step procedure for solving some problem. For example, a recipe is an algorithm: you have a starting point, with your ingredient...
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Answered by Luke S. • Computing tutor
3997 Views

How to solve an equation when the variable is in the denominator?

I find the best way to explain maths is by using more numbers than words, so I'll use an example to explain this: 3 - 2x+2/x+4 = 4 A good thing to do before attempting to solve an equation is to get rid of a...
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Answered by G D. • Maths tutor
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