Which of these is a well-known example of an annelid found in freshwater or terrestrial environments?

The phylum Arthropoda includes which of the following subphyla?

Which of the following is NOT a chordate subphylum?

The pharyngeal slits or gills in chordates are involved in:

The pharyngeal slits or gills in chordates are involved in:

Tunicates, or sea squirts, belong to which subphylum of chordates?

Lancelets belong to which subphylum of chordates?

Animals that have a solid body with no body cavity are said to be:

The phylum Arthropoda includes which of the following subphyla?

Which of the following is NOT a characteristic of annelids?