| http://www.w3.org/ns/prov#value | - ???Many animals build tissues and structures they don???t appear to use, and then they disappear,??? says Clune. ???In a developing embryo, each new structure is built in a delicate environment that consists of everything that has already developed,??? he explains. ???Mutations that alter that environment, such as by eliminating a structure, can thus disrupt later stages of development.
|