2020年5月30日 · I interpreted some inner canals of dickonsonia to be coelom/pseudocoel but I could be wrong.. Edit sponges have a body cavity that is open to the rest of the world.
2019年9月27日 · Is the rhynocoel a derived character of nemertea? Rhynchocoel* Nemertea are considered an acoelomate. Im wondering is the rhynchocoel essentially a pseudocoel like …
2012年11月6日 · Google stopped officially supporting Opera sometime this year, a few news articles suggest it was somewhere near the end of June. Instead of putting a message saying …