‘Proto’ in Greek translates to first while ‘stoma’ translates to mouth, thereby protostome, in a literal sense, means ‘the first mouth’. When the first opening of an animal’s embryo develops into a mouth, the animal is classified as a protostome. Examples include insects and earthworms.
Protostome
Protostome vs. Deuterostome: What is the difference between Protostome and Deuterostome?
Protostome vs. Deuterostome: Let’s discover their differences, similarities, examples, and answer some of the most frequently asked questions (FAQ) about Protostome and Deuterostome
