Your doctor is looking at a sample of your blood to see if you have an infection. What instrument will he need to use to be able to see your blood cells?
A) microscope
B) thermometer
C) metric ruler
D) spring scale
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Answer:
doctor can see my blood cell by microscope
Explanation:
A scanning electronmicroscope (SEM) image of normal circulating human blood. One can see red blood cells, and several knobby white blood cells, and small disc-shaped platelets
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Answer:
A spring scale or spring balance or newton meter is a type of mechanical force gauge or weighing scale. ... It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position.
Explanation:
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