Trends in the evolution of animals includes

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All of these options are trends in the evolution of animals. Cephalization is the concentration of nervous tissue and sensory organs in the head region. The development of types of symmetry includes radial symmetry found in animals like jellyfish and bilateral symmetry found in animals like humans. Variation in coelomic cavities refers to the presence or absence of a fluid-filled body cavity called the coelom, which can be found in different degrees in different animal groups. The development of segments is the formation of repeated units along the body axis, seen in animals such as earthworms and arthropods. All of these trends are observed in the evolution of animals.

Trends in the Evolution of Animals Includes