. "0"^^ . . . "the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue"@en-us . . . . . "101464077"^^ . . "mesoderm"@en-us . . . "0"^^ . "the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue"@en-us . . . "mesoderm"^^ . . . "mesoblast"@en-us . "100988878"@en-us . . . . . "101387360"@en-us . "01464077-n"^^ .