Title of lesson: Dry Ice Investigations

Put the oil immersion lens back into the plastic container. D. Review of metric units: 1 cm (centimeter) = .01 meter (2.5 cm = about one inch) 1 cm = 10 mm (millimeters) 1 mm = 1,000 µm (micrometers) (This page is about 15 µm thick) ... which must serendipitously come in contact with the correct alga to produce a new lichen. Soredia are small ... ................
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