Use FIREFOX for movies! Cabomba -> Hornwort? instead of Elodea! ONION: high power length (see 3 cells) .4 mm/3 = .13mm (rounded) Bring whole ONION w roots. TOILET PAPER: TURGID parallelepiped
you can photo thru microscope to help study.

Rotifer eats paramecium?
µ=micro(10^-6)! LAB EXAM: What is a typical length of Cabomba cell? 50 µm Also moving mitochondria, chloroplasts are BIGGER, don't move well!
Cheek: see ~ 10 across low power: about same size as onion .15 mm? This is huge under high power. Paramecium: see > 10 across low power: so less than .15 mm. Protista; contractile vacuole also stores water.
Epidermal=skin, 4 tissues (epithelial, nervous, muscle, connective). Animal shape varies: squamous, cuboidal, columnar->