... A blastopore is an opening into the archenteron
during the embryonic stages of an organism. The ... ... blastopore . Noun. 1. the opening into the archenteron
(hypernym) ... Blastopore - Wikipedia, the ... A blastopore is an opening into the archenteron
during the embryonic stages of an organism. ... ...
... in the developing blastula is known as the archenteron
. It develops into the digestive tract of an ... Third, secondary mesenchyme pull the tip of the archenteron
towards the animal pole. ... archenteron
/Primitive streak (Primitive pit, Primitive ...
... blastula that will eventually be internalized by epiboly. Frog yolk plug . This embryo is near the end of gastrulation. ... overlying the archenteron
roof at the yolk plug gastrula stage ... Continue. Frog Yolk Plug ... yolk plug . Definition from Wiktionary, a free dictionary. ...
... Endoderm , is one of the germ layers formed during animal embryogenesis. Cells migrating inward along the archenteron
from the inner layer of the gastrula, which develops into the endoderm . The endoderm consists at first of flattened cells, which ...