Question

Type of asexual reproduction found in Hydra is
a. Gemmule formation
b. Sporulation
c. Binary fission
d. Budding

Answer 1

Hint: Hydra comes under the class Hydrozoa and phylum coelenterates, and is a genus of small to regenerate, and they never age or die due to old age. Hydra reproduces by asexual mode of reproduction.

Complete answer:
Hydra has a tubular body extended from a foot called the basal disc and has radial symmetry. The foot is adhesive in nature. At the other end, the mouth is present, having several tentacles.
When conditions are unfavourable, they reproduce sexually. But when they have enough food, hydra reproduces asexually through budding, producing a small bud from the wall of the body, that grows, matures and then splits from the main parent body. A new bud can develop every second day.

Asexual reproduction is a form of reproduction in which no gamete fusion occurs. Budding is a type of asexual reproduction in which the parent body form an outgrowth called as a bud from where a new organism develops. As budding is a type of asexual reproduction, new offspring formed will be the exact copy of parent organism. In hydra, bud is formed due to frequent cell divisions at one place.

Hence, the correct answer is option (D).

Note: One hydra has 50,000 to 100,000 cells. The stem cells present in the body continuously divide. The body of hydra has two main parts – head and foot. If a hydra is cut into two halves, each part has the capability to regenerate the other half portion. The head will generate a new foot and the foot will generate a new head. organisms living in freshwater. They are of great interest to the scientists because of their nature.