Question

Both invertebrates and vertebrates, with the exception of the _____, have a nervous system. lancelet reptile mollusk sponge

Answer 1

the answer is sponge

Step-by-step explanation:

Answer 2

sponge

Like reptiles and mollusks, lancelets is the group of chordates that has a notochord and includes separate males and females. Lancelet exhibits the four basic characteristics of phylum Chordata. It has a dorsal nerve, a notochord, a post annul tail, and pharyngiall gill slit.