Sign in to view
Please sign in or register for an account to be able to access this piece of content.
Sign InAbstract, simplified representation of an object or process. In biology, a species of microbe or non-human animal allows study of a biological process in the lab.
Many a future engineer grew enamored as a child with model trains, model planes, or model cars.
Please sign in or register for an account to be able to access this piece of content.
Sign In