Examlex
When oxygen binds with hemoglobin, the molecule is called ________.
Spicules
Small, spike-shaped structures found in certain animals like sponges, serving as a skeletal element.
Radial Symmetry
Body plan in which similar parts are arranged around a central axis, like spokes of a wheel.
Tissue Layers
Various layers of cells in an organism that have specific functions and form organs and other body structures.
Cnidarians
A phylum of aquatic invertebrate animals that includes jellyfish, corals, and sea anemones, characterized by their radial symmetry and stinging cells.
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