Because they're spineless. "In" would be the negative, and analogous to "less". Vertebrae is spine.
Following are some pictures of invertebrates i.e animals without backbones: Following are some pictures of invertebrates i.e animals without backbones:
All invertebrates are ectothermic (cold-blooded) animals.
These animals are called invertebrates. Invertebrates have no backbone. Examples of invertebrates are insects.
invertebrates are animals which do not have a skeleton made up of bones . Some examples of invertebrates are - Jellyfish , Corals , Starfish , Sponges , Crabs and Shrimps
invertebrates (animals without backbones) this isn't accurate as some of the Earth's species haven't yet been discovered. anyways,hope this helped:)
invertebrates
No, 95-97% of all animals on Earth are Invertebrates.
Invertebrates are animals without a backbone. Some types of invertebrates are worms, sponges, jellyfish and spiders.
All animals in the invertebrate kingdom. This includes all insects.
Vertebrates are animals with backbones, invertebrates are animals without backbones.
Worms, spiders and insects are invertebrates.
invertebrates