Question

Which of the following statements is true for Hydra?
A. It provides asexual gemmules
B. It produces a unicellular bud
C. It produces a multicellular bud
D. None of these

Answer 1

Hydra can be found in a range of freshwater environments. They occur mainly in wetlands, streams and slow-flowing river systems. Hydra is motile and is attached to aquatic plants, underwater wood, or rock. It reproduces by means of asexual reproduction.

Complete step by step answer: Hydra reproduces asexually by budding. The unicellular buds develop from the wall of its body. It matures into tiny adults, and drift away when matured. Once the hydra is very well fed, a new bud can be produced every 2 days. Buds are genetically similar clones that develop and live free once they are mature. Around the same time, Hydra can have several buds at various stages of development. Hydra is especially fascinating because of their proliferative potential since they do not really seem to age or actually die. They can also die by means of injury, illness, deprivation, or unappealing environmental circumstances. Hydra stays constant for a prolonged period of time, even though it can travel by flipping the body, binding to the tentacles, freeing the basal disc, and re-attachment. Hydra does not show any vital signs of ageing and tends to be eternal. Due to such properties, they are used for research.
So, the correct answer is option B.

Additional information: Sexual reproduction also takes place in Hydra, but most of them seem to be hermaphroditic and grow both ovaries and testicles. They insert sperm through the water to fertilise several hydra eggs. Fertilized eggs inevitably lead to tiny larvae that attach oneself to and mature into polyps. Hydra has been among the most studied species owing to its capacity to regenerate after being chopped up or thrown in a blender and centrifuged.
Note: In specific, the anatomy of the hydra is structured like a tube with tentacles distributed around the body's head. Hydra reproduces by a process known as budding. Since asexual reproduction needs one parent, the offspring is formed by mitosis, and the DNA and behaviours of the offspring are identical with those of the parent.