The organism shown is a free-living one that is anchored to the bottom of ponds and streams during the first part of its life cycle.

what is the common name of this organism?

jellyfish

hydra

coral

anemone

The common name of this organism is hydra.

Explanation:

Hydra is a fresh water organism and belongs to the phylum Cnidarian. They have tentacles around their body that enables locomotion as well as protection from prey.  Hydra has the ability of regeneration and the asexual mode of reproduction in hydra is budding.

In the budding process, a small bud develops in the parent body and the bud after maturation gets detached from the parent body and grows into a new individual.  Sexual mode of reproduction is also found in hydra.

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