Answer: The correct answer is- starfish, earthworms, tunicates, lancelets, octopus, crab, grasshopper.
Invertebrates are those living organisms that don’t possess a vertebral column. The backbone is another name for the vertebral column. More than 90% of the species that are present on earth are invertebrates. There are primarily 8 phyla that come under invertebrates.
Out of the given options, the invertebrates are-
starfish ( come under phylum echinodermata), earthworms ( phylum annelida), tunicates and lancelets ( marine invertebrates that are related to chordates), octopus ( phylum mollusca), crab and grasshopper ( phylum arthropoda),