Question

What is a common character of the above shown animals?

• A. They all live in water.
• B. They all lack backbone.
• C. They all have scales on their body.
• D. They all lay eggs to reproduce.

Answer 1

The correct option is B They all lack backbone.

The backbone or the vertebral column Is a long, bony, rod-like structure, which extends from the base of the skull to the lower back. The animals which possess the backbone are called vertebrates and the ones which do not possess it are called invertebrates. Ant, spider, octopus, amoeba and starfish, are all invertebrates.