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swim bladder
The phosphate-deoxyribose backbone and four bases are represented by custom plastic molds that show the shape of the molecules in proportion and illustrate the bonding between them
Design a turbine to harness the power of the wind and convert it into electricity
A versatile instrument and demonstration meter that can be converted to an A
bull frogs
Force Meter Tubular Balance 1000g/10N Brown Tubular Spring Scale Zoology Model swim bladderIncluded: Forcemeter Tubular Balance 1000g 10N. This spring scale have a clear body that is calibrated in both grams and newton. Both rings and hooks are chrome plated, and each can be zeroed with the metal nut located at the top. Dimensions of scale (excluding ring and hook) are approximately 18 centimeters long by 2 centimeters diameter. Excellent for classroom, industrial and laboratory uses. If you need custom order with different sizes design,
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