Need help with this biology questions!!!

Posted on 2014-12-06 06:27:00 in Biology by LEENA

For each explain in detail and provide reasoning......

1. Estimate the number of bacteria that would be necessary to cover your entire respiratory tract with one continuous monolayer of bacteria. If 0.001% of them could cross your respiratory tract, how many would make it? *

2.How many Botulism toxin molecules are sufficient to kill one single human cells? *

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