[Campbell Biology P.731] An unknown animal species is observed to undergo radial, indetermin... | Practice Question
An unknown animal species is observed to undergo radial, indeterminate cleavage during early embryonic development. Furthermore, its blastopore eventually develops into the anus. Based on these observations, which of the following animal groups would it most likely belong to?
Explanation
The text states that deuterostomes are characterized by radial, indeterminate cleavage and that in deuterostome development, the blastopore usually forms the anus. Chordates are given as an example of deuterostomes in Figure 32.10.