Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

When does the developing embryo of Hydra drop from the body of the parent?
Options
A Soon after formation of zygote
B After formation of blastula
C After formation of gastrula
D Only after it has developed into young Hydra
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

In Hydra, the embryo develops within the parent's body. The fertilized egg undergoes cleavage and gastrulation while still attached to the parent. The embryo, which forms a protective chitinous shell, is released only after it has developed into a young Hydra. It then settles and grows into an adult.

Hint

Hydra embryos are retained and protected by the parent until they are fully formed juvenile polyps.

Question Info