Animal Body Plan Diversity
Types of Symmetry
Radial Symmetry
In radially symmetric animals, the body is arranged around a central axis, with the parts of the body repeating around the axis. Examples include jellyfish, sea stars, and anemones.
Bilateral Symmetry
In bilaterally symmetric animals, the body can be divided into two mirror-image halves. Examples include humans, vertebrates, and insects.
Levels of Organization
Cellular Level
Cellular level organization is the simplest level, with the body consisting of a single cell.
Tissue Level
Tissue level organization involves cells that are organized into tissues, which are groups of cells that perform a specific function.
Organ Level
Organ level organization consists of tissues that are organized into organs, which are structures that perform a specific function.
Organ System Level
Organ system level organization involves organs that are organized into organ systems, which are groups of organs that work together to perform a specific function.
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