1. At what magnification do you first notice the ragweed pollen?


Question Description:

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1. At what magnification do you first notice the ragweed pollen? 2. Which is bigger, a rhinovirus or E. Coli? 3. Based on the magnification, how many of the E. Coli can fit into the same space as the head of a pin? 4. About how many red blood cells could fit across the diameter of a human hair (again, look at the magnification scale)?

Answer

35