"The initiation of the activity of the inactive enzyme MAP kinase by phosphorylation by a MAPKK [goid 187] [evidence IEA]; A complex and coordinated series of cellular movements that occurs at the end of cleavage during embryonic development of most animals. In Deuterostomes the initial blastopore becomes the anus and the mouth forms second [goid 1702] [evidence IEA]; The close range interaction of two or more cells or tissues that causes them to change their fates and specify the development of an organ [goid 1759] [evidence IEA]; The series of molecular signals generated as a consequence of a transmembrane receptor tyrosine phosphatase binding to its physiological ligand [goid 7185] [pmid 9660748] [evidence TAS]; The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand [goid 7186] [pmid 9660748] [evidence TAS]; A series of reactions within the cell that occur as a result of a single trigger reaction or compound [goid 7242] [pmid 9069267] [evidence EXP]; The expansion of a neuroblast population by cell division. A neuroblast is any cell that will divide and give rise to a neuron [goid 7405] [evidence IEA]; The series of molecular signals generated as a consequence of a fibroblast growth factor receptor binding to one of its physiological ligands [goid 8543] [pmid 9660748] [evidence TAS]; The specification of the anterior/posterior axis of the embryo by the products of genes expressed maternally and genes expressed in the zygote [goid 8595] [evidence IEA]; The process whose specific outcome is the progression of the forebrain over time, from its formation to the mature structure. The forebrain is the anterior of the three primary divisions of the developing chordate brain or the corresponding part of the adult brain (in vertebrates, includes especially the cerebral hemispheres, the thalamus, and the hypothalamus and especially in higher vertebrates is the main control center for sensory and associative information processing, visceral functions, and voluntary motor functions) [goid 30900] [evidence IEA]; Establishment and formation of the optic placode, paired ectodermal placodes that become invaginated to form the embryonic lens vesicles [goid 46619] [evidence IEA]"