Todd unit
The unit in which the results of testing for antistreptolysin O (ASO) are expressed. It denotes the reciprocal of the highest dilution of test serum at which there continues to be neutralization of a standard preparation of the streptococcal enzyme streptolysin O.
Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..
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Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
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