Based on the provided information, a Hydra moves through a specific sequence of actions involving its body and tentacles.
Understanding Hydra Locomotion
According to the reference, the movement involves a series of steps that are repeated. This allows the Hydra to change position in its environment.
Here are the steps describing how a Hydra moves, based on the reference:
- The body is brought up closer to the Crown of tentacles.
- The organism is then attached.
- Subsequently, the tentacles loosen.
- The body becomes erect again.
The reference explicitly states, "Again the whole process which is repeated," indicating this sequence forms a cyclical method of locomotion for the Hydra. This process allows the Hydra to move across surfaces by essentially performing a series of attachments and extensions.
This method of movement, often referred to as "looping" or "somersaulting" in broader biological contexts (though the reference only describes the steps as listed above), is fundamental to how this simple organism navigates its surroundings.