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Individual organisms are obviously rarely symmetrical themselves, so symmetry is referring to a perfect example of the species. There are 3 types of symmetry present in organisms.

The first is bilateral symmetry. This is probably the most common, and it is present in humans. It means that the organism can be cut in half and produce two equal sides in one and only one way.

The next is radial symmetry. Radial symmetry means that the animal can be cut in half and produce two equal sides in multiple directions, like a sand dollar or a sea star.

The last, which your question is about, is asymmetry. This mean the organism exhibits no symmetry at all. An example of this is something like a common sponge in the class demospongiae. Hope this helps!
Animals lacking symmetry are known as asymmetrical. This means they lack spherical, radial, and bilateral symmetry. Most commonly, this can be seen among sponges. (yes, sponges are animals :O )
All animals start out with some sort of symmetry but then some lose it as they develop into their adult form. One good example would be the oyster.

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6y ago
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10y ago

Poryphera in general don't have any body symmetry.

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11y ago

Some examples of animals are sea anemone, jellyfish, and sea stars. Basically anything in the Phyla cnidaria and echinodermata.

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10y ago

Phylum Porifera, the sponges, have no body symmetry.

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11y ago

farm animals

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14y ago

no

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Q: Is there an animal without symmetry?
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