The structure that holds the two hemispheres of the brain is the corpus callosum.
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pipette is used to transfer a sample to a microscope slide.
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Among these adaptations are: streamlined bodies for efficient movement through water; forelimbs modified into flippers to aid in steering; hind limbs internalized remnants reducing drag; tail positioned horizontally to achieve a powerful up and down propulsion; hair replaced with under-skin blubber to provide warmth ...
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