[4] [1] It is now known that the fate of the blastopore among protostomes is extremely variable; while the evolutionary distinction between deuterostomes and protostomes remains valid, the …

Protostomia, group of animals—including the arthropods (e.g., insects, crabs), mollusks (clams, snails), annelid worms, and some other groups—classified together largely on the basis of …

2017年4月28日 · Protostome Definition. Protostomes are a clade of animals that undergo protostomy during their embryonic development. The protostomes, together with the …

2017年2月26日 · Main Difference – Protostomes vs Deuterostomes. Protostomes and Deuterostomes are two clades of animals that make up the Bilateria, a clade of subkingdom: …

The key difference between protostomes and deuterostomes is the fate of the blastopore during their embryonic development. The blastopore in a protostome develops into a mouth, whereas …

2024年4月12日 · The key difference between Protostomes and Deuterostomes lies in the development of their embryonic cells, with protostomes forming the mouth first during …

Animals in which the blastopore becomes the mouth are called protostomes; those in which the mouth develops after the anus are called deuterostomes (from the Greek "deutero," meaning …