GENERAL HISTOLOGY

OESOPHAGUS STOMACH

ECHINODERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Vertebrates are:
A
organisms that are animals
B
organisms without at backbone
C
living things
D
organisms with a backbone
Explanation: 

Detailed explanation-1: -An animal that has a backbone and skeletal system is called a vertebrate. 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 animals that have a backbone or spinal column, also called vertebrae. Several groups of vertebrates inhabit planet Earth. The five most well known classes of vertebrates (animals with backbones) are mammals, birds, fish, reptiles, amphibians.

Detailed explanation-3: -Also called spinal column, spine, and vertebral column. Enlarge. Anatomy of the spine. The spine is made up of bones, muscles, tendons, nerves, and other tissues that reach from the base of the skull near the spinal cord (clivus) to the coccyx (tailbone).

Detailed explanation-4: -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-5: -The backbone gives support for the body. Joints between the vertebrae make the backbone flexible (bendy). In some vertebrates the backbone extends to form a tail.

There is 1 question to complete.