Question

Q.2 Give one word the following:
1. Animal possessing vertebral column
2. Animal without back bone.
3. Each unit of a back bone
4. The tissue present between the two vertebrae.
5. The type of joint at the thumb
CO-ED​

Answer 1

Explanation:

1)Vertebrates have a true vertebral column and an internal skeleton. Vertebrates include fishes, amphibians, reptiles, birds and mammals.

2)The animals that do not possess backbones are known as vertebrates. These animals are mostly soft-bodied. For example Earthworms, snails, sponges, etc.

3)The backbone can be split into 5 major segments – the cervical spine, the thoracic spine and the lumbar spine, the sacrum and the coccyx.

4)White fibrous cartilage is present between vertebrae to allow limited movement. This ensures proper structural rigidity and body balance yet allowing for limited movement required.

5)The thumb basal joint, also known as the carpometacarpal (CMC)