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Managing Head Lice Safely
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Managing Head Lice Safely

Description:

The iris has two muscles: The dilator muscle makes the iris smaller and therefore the pupil larger, allowing more light into the eye; the sphincter muscle makes the iris larger and the pupil smaller, allowing less light into the eye. Pupil size can change from 2 millimeters to 8 millimeters. This means that by changing the size of the pupil, the eye can change the amount of light that enters it by 30 times.

General details:

Sold by: siva
Email: gnssiva@gmail.com

Ad Details

Ad id: 304
Ad views:712
Ad expires: 2009.05.06 (in -1005 days)
Added: 2009.04.06
Current rating (after 0 votes) Grade

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