Examlex
Which of the following recent theoretical perspectives is concerned with the adaptive, or survival, value of behavior and its evolutionary history?
Radial Symmetry
A symmetrical arrangement of parts around a central axis, as seen in many marine organisms, allowing them to interact with their environment from all directions.
Bilateral Symmetry
Body plan having two corresponding or complementary halves.
Sessile Filter Feeders
Organisms that are fixed in one place and eat by straining suspended matter and food particles from water, typically through a filtering structure.
Cell Layers
Stratified structures formed by cells in multicellular organisms, contributing to the formation of tissues and organs.
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