What is a key limitation of using the median lethal dose ($ ext{LD}_{50}$) value to gauge the 'fastest killing' venom?

Answer

It does not perfectly correlate with the time to death in a large, untreated human.

While $ ext{LD}_{50}$ measures raw toxicity, it does not account for the speed at which the venom is absorbed, distributed, and exerts its effects on critical systems within a large human body.

What is a key limitation of using the median lethal dose ($	ext{LD}_{50}$) value to gauge the 'fastest killing' venom?

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