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This Microslide, Human Reproduction, includes a slide featuring 8 related 35mm images photographed through a microscope called photomicrographs. Arrows and call outs help the student locate important features. This Microslide is accompanied by a detailed lesson plan designed to stimulate, inform and question students about the topic under study, and has a pocket in which the Microslide is stored. The following magnified specimens are depicted on the slide: Sperm cells (wm, 1,800X), Egg cell/ovum, fertilization (wm, 200X), Fertilized egg/zygote (wm, 200X), Two-celled embryo, first cleavage (wm, 200X), Chromosomes, squash (st, 400X), Ball of cells (wm, 200X),Blastula/hollow ball of cells (wm, 200X,) Embryo, five weeks (wm, 3X).