Oil is a natural product, has many components and is biodegradable, the different components being degraded at different rates but still oil spills are considered as recalciterants because

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#Question id: 670

#XL - Q Biochemistry

The distance along a helix axis for one complete turn is called the ________.

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#Question id: 10821

#XL - T Zoology

What factor does not contribute to the rapid loss of nutrients from terrestrial ecosystems?

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#Question id: 5755

#XL - S Microbiology

A researcher studying bacterial toxin predicts that a lysine within the toxin is important for binding it’s target cell.  She used site-directed mutagenesis to change a codon for lysine (AAA) to one for asparagine (AAU).  However, the mutant toxin still binds to its target cell just as well as the wild-type toxin bound and appears to have no other changes. This type of mutation is probably

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#Question id: 11403

#XL - R Botany

Several categories of risk of species extinction have been defined. A species can be determined as critical endangered if there is considered to be

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#Question id: 34203

#XL - S Microbiology

For a bacterial species, the following parameters are known:

μmax=0.9 h⁻¹

Ks=0.1 g/L

Substrate concentration S=0.1 g/L 

Calculate the specific growth rate μ.