Q. The fluid-filled cavity in a blastula is calle
✅ Correct Answer: (B)
Blastocoel
Explanation:
The blastocoel is the fluid-filled cavity that forms inside the blastula during early embryonic development. It provides space for cell movement and plays a crucial role in gastrulation, the process that leads to the formation of different germ layers.
- (A) Coelom → The body cavity formed later in development, lined by mesoderm.
- (C) Neurocoel → The cavity within the neural tube, which later forms the brain and spinal cord.
- (D) Gastrocoel → The primitive gut cavity formed during gastrulation, also called archenteron.
Thus, the correct answer is (B) Blastocoel.
Explanation by: Mr. Dubey
The blastocoel is the fluid-filled cavity that forms inside the blastula during early embryonic development. It provides space for cell movement and plays a crucial role in gastrulation, the process that leads to the formation of different germ layers.
- (A) Coelom → The body cavity formed later in development, lined by mesoderm.
- (C) Neurocoel → The cavity within the neural tube, which later forms the brain and spinal cord.
- (D) Gastrocoel → The primitive gut cavity formed during gastrulation, also called archenteron.
Thus, the correct answer is (B) Blastocoel.