EVERYDAY SCIENCE

Detailed explanation-1: -Vertebrates are animals with backbones and skeletal systems. A backbone can also be called a spine, spinal column, or vertebral column. The individual bones that make up a backbone are called vertebrae.

Detailed explanation-2: -Vertebrates are organisms which have an internal backbone surrounded by bone, also called vertebrae. They have a hard skeleton made of bone, that supports the body’s tissue and anchor muscle. Animals that don’t have spines are called invertebrates.

Detailed explanation-3: -The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds. Show examples of these groups and explain the characteristics that make one different from another.

Detailed explanation-4: -Vertebrates make up less than five percent of all described animal species; the rest are invertebrates, which lack vertebral columns. The vertebrates traditionally include the hagfish, which do not have proper vertebrae due to their loss in evolution, though their closest living relatives, the lampreys, do.

Detailed explanation-5: -Some animals, like dogs, cats, birds, lizards, fish, and even humans have backbones-Scientists classify backboned animals as vertebrate. Other animals, such as squid, worms, bugs, and clams do not have backbones. Scientists call these animals invertebrates.