One of these subsequent events is organogensis, which gastrulation makes possible by allowing the different germ layers to differentiate into major body tissues and form functioning organs. The germ layers that are established during gastrulation are the endoderm, mesoderm, and ectoderm.
Eilean Donan Castle is a medieval castle on the small island of Eilean Donan in Loch Duich in the western Highlands of Scotland.The island is dominated by its famous picturesque castle.ilean Donan Castle is a medieval castle on the small island of Eilean Donan in Loch Duich in the western Highlands of Scotland.
Conwy Castle (Welsh: Castell Conwy, English: Conway Castle) is a medieval fortification in Conwy, on the north coast of Wales.It was built by Edward I, during his conquest of Wales, between 1283 and 1289.Constructed as part of a wider project to create the walled town of Conwy, the combined defences cost around Â£15,000, a huge sum for the period. Over the next few centuries, the castle played an important part in several wars.onwy Castle (Welsh: Castell Conwy, English: Conway Castle) is a medieval fortification in Conwy, on the north coast of Wales.