A distinctive type of larva shared by several phyla of invertebrates and considered to be important in phylogeny is the
A)trochophore.
B)paedomorph.
C)gastrula.
D)metamere.
E)tadpolE.

Question

Quizplus · Accepted Answer

The trochophore larva is a distinctive type of larva shared by several phyla of invertebrates such as Annelida, Mollusca, and some other smaller groups. It is considered important in phylogeny as it suggests a common ancestor for these phyla.

A Distinctive Type of Larva Shared by Several Phyla of Invertebrates