With our little personal trainer around, you'll always be watching your weight. GIANTmicrobes(R) Original (5-7" plush doll) $9.50 GIANTmicrobes(R) Petri Dish (3 mini microbes) $14.50

Brain Cell (Neuron) Egg Cell (Human ovum) Fat Cell (Adipocyte) Nerve Cell (Neuron) Platelet (Thrombocyte) Red Blood Cell (Erythrocyte) Sperm Cell (Spermatozoon) White Blood Cell (Leukocyte)