BiologyWise
Biology Wise: Tips on How to Make a 3 D Plant Cell Model
Describes the steps in how to make a model of a plant cell using clay and simple materials found at home. Suggestions for variations are also given.
Merck Sharp & Dohme Corp.
Merck Manual: Biology of the Heart
The Merck Manual describes the human heart and shows how the heart pumps blood. Includes interactive 3D models.