Table of Contents
What are Invertebrates?
Invertebrates are animals without backbones. They make up 95% of all the animal species on Earth and include everything from insects and spiders to jellyfish and sea stars.
| S.NO | CONTENT |
| 1 | INTRODUCTION |
| 2 | THE LIST INVERTEBRATES |
| 3 | BIOLOGICAL CLASSIFICATION |
The List of Invertebrates
- Invertebrates are animals without a backbone. This group includes everything from sponges and jellyfish to worms, insects, and crustaceans. Invertebrates can be found in nearly every environment on Earth, from the deepest ocean trenches to the highest mountain peaks.
- There are many invertebrates in the world and they come in all shapes and sizes. Invertebrates are animals that don’t have a backbone and they include insects, spiders, and crustaceans.
- Insects are the most common group of invertebrates and there are over a million different species. They can be found almost everywhere on Earth and they come in all shapes and sizes. Some of the most famous insects are the ladybug, the bumblebee, and the mosquito.
- Spiders are another common type of invertebrate and there are over 35,000 different species. They are found all over the world and they come in all shapes and sizes. Some of the most famous spiders are the black widow, the brown recluse, and the tarantula.
- Crustaceans are a type of invertebrate that includes crabs, lobsters, and shrimp. There are over 30,000 different species of crustaceans and they are found all over the world. Some of the most famous crustaceans are the crab, the lobster, and the shrimp.
The Biological Classification Of Invertebrate Animals
- Invertebrate animals are animals that lack a backbone. They are divided into five phyla: protostomes, deuterostomes, cephalochordates, lancelets, and tunicates.
- Protostomes include the mollusks, annelids, arthropods, and nematodes. Mollusks include snails, clams, and octopuses. Annelids include earthworms and leeches. Arthropods include spiders, crabs, and insects. Nematodes include roundworms and hookworms.
- Deuterostomes include the echinoderms and chordates. Echinoderms include sea urchins, sea stars, and sea cucumbers. Chordates include fish, amphibians, reptiles, birds, and mammals. Lancelets are a type of chordate that look like small fish. Tunicates are a type of chordate that look like small jellyfish.
For more visit Vertebrates and Invertebrates – Examples and Classification
