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The three basic body plans of bilaterally symmetrical animals.
Tense laid back ear position indicating unhappiness. Mouth and lips are also tense, which may indica
Anterior and posterior views of the body illustrating the location of various body regions.
A typical magnetic crankshaft position sensor.
Side-lying position. Placement of bolsters under the superior leg, arm, and head.
Position effect, as illustrated in the eye phenotype in two female Drosophila