Blastopore is the pore of:
- A.C.
- Archenteron
- Blastocoel
- Coelom
Answer
(2) Archenteron
Solution
During gastrulation the endoderm cells invaginate and form a new cavity, the archenteron (primitive gut), lined by endoderm.
∴ The archenteron opens to the outside through a pore called the blastopore.
The blastocoel is the cavity of the blastula (obliterated during gastrulation), and the coelom is the mesoderm-lined body cavity formed later.
Answer: (2)