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Orion
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Roof drain
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Apogee kick motor
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Hot spring
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Grading
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Thruster
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Diadochic substitution
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Asteroid belt
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Crossover
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Rhea
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New Worlds Observer
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Nucleic acids
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Ununseptium
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Iron-bearing formation
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Antidote
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Pomegranate
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CEDRE
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Autumn Crocus
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DNS
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Feral
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Quantum entanglement
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Helsinki Convention
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Cross-certification
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Coordination bond
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ADSL
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Urticaria
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EDI
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Scambaiting
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Lander
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Hydrogen bond
Smooth muscle
Smooth muscle are made up of single cell nuclei and contract involuntarily, unlike striated muscles.
Their function is to circulate substances in the body and they are found in the walls of the gastrointestinal tract (for peristalsis), arteries (to promote vasomotility), and also in the urinary and respiratory system to circulate urine and air.
Smooth muscles promote the circulation of substances in the body. © Polarlys / Licence Creative Commons
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