NTA Abhyas NEET2020BotanyAnimal KingdomPractice
In vertebrates, the notochord is modified into
Options
- AVertebral column
- BCentrum of vertebrae
- CBody of vertebrae
- DTransverse process of vertebrae
Correct answer
A. Vertebral column
Step-by-step solution
The members of subphylum vertebrata possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult. Besides the basic chordate characters, vertebrates have a ventral muscular heart with two, three or four chambers, kidneys for excretion and osmoregulation and paired appendages which may be fins or limbs.