Which of the following is NOT a vertebrate?

Correct option is B

The correct answer is (b) Snail. A snail is not a vertebrate, while birds, fish, and mammals are vertebrates.
· Vertebrates are animals that possess a backbone or spinal column.
· Snails belong to the phylum Mollusca and are invertebrates, meaning they do not have a backbone.
· Birds, fish, and mammals are part of the phylum Chordata and possess a well-defined vertebral column or spine.
· Snails have a soft body protected by a hard shell, but they lack the structural backbone that defines vertebrates.
Information Booster:
· Invertebrates constitute over 95% of all animal species, including insects, mollusks, and arthropods.
· Vertebrates have a well-organized skeletal structure that supports their body and aids movement.
· Snails have a muscular foot for movement and a radula (a toothed structure) for feeding.
· Other examples of invertebrates include octopuses, worms, and jellyfish.