are insects protostomes or deuterostomes
Most invertebrates are protostomes. Deuterostomes refer to an animal whose anus is formed from the blastopore and later, the mouth forms... Echinoderms which are sea stars, sea cucumbers and all vertebrates --animals with backbones, develop in this way and are deuterostomes.hylum Arthropoda are organisms which have jointed appendages and include: Crustaceans, Insects, Spiders to name a few. They are invertebrates.They are protostomes. This refers to an animal whose mouth is formed from the blastopore during embryonic development.