Examlex
Multiply.
-(1.8x - 6y) (3.2x + 9y)
Bilateral Symmetry
A body plan in which there are two symmetrical halves of the body, with a distinct left and right, matching one another.
Radial Symmetry
A body plan in which body parts are arranged around a central axis, characteristic of many invertebrates like jellyfish and sea urchins.
Deuterostomes
A major group of animals in which the anus develops from the first opening in the embryo, with humans and starfish as examples.
Chordates
A phylum of animals that, at some stage in their life cycle, possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, endostyle, and a post-anal tail.
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