Scientists suspect that human language evolved around 150000 years ago.
<span>the human language is linked to the Homo Sapiens who lived around 150,000 to 200,000 years ago in eastern or perhaps southern Africa</span>
The reason why scientists suspect this is <span>by evidence of abstract and symbolic behaviour in the early modern humans, taking the form of engravings on red-ochre.
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The climate of the tropical zone characterized by a very wet season alternating with a very dry season is wet/ dry topical climate.
Carbon can bond up to 4 times so it can be stronger in some cases than other elements.
Answer the following: A. Agarose gels are used in gel electrophoresis to separate what type of molecules: B. At what concentration range (%) are agarose gels typically used? C. Indicate why the concentration of Agarose is increased or decreased in certain Agarose gel electrophoresis applications? D. Polyacrylamide gels are used to separate what type of molecules?
dr naJiiB ibrahim
