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you can tell if an animal have bilateral symmetry if you cut the animal in half, (hypothetically) and both sides are the same
Body symmetry and cephalization are both animal evolution trends, and both are primarily seen in more complex animals (think humans rather than sponges). Therefore, both enhance the complexity and speed of an animal's response. Body symmetry and cephalization give an animal an advantage of better and more convenient usage of its senses and body parts.
If a animal has a head then its body symmetry is bilateral.
How can you identify the body symmetry of an animal
Bilateral Symmetry
When it has no symmetry the object is called asymmetrical.
One animal that has radial symmetry is a sea sponge.
what is the relationship between complexity and the cephilization of a sponge?
Bilateral Symmetry - Right down an animal (Worm or fish)Radial Symmetry - Symmetry like a circle (E.g - Starfish)Asymmetrical - No symmetry
Two features that define animal phyla are body plan (organization of tissues and symmetry) and level of complexity (including presence or absence of true tissues, body cavities, and segmentation).
Opposite symmetry LOL :)
Jellyfish are ocean animals with radial symmetry.