The type of microscope described above is the <span>phase contrast microscope. This microscope can produce high contrast images useful when observing transparent objects like living cells, microorganisms or tissue samples.
</span><span>
</span>
D, is the answer. If you take antibiotics more than you're supposed to your immune system gets used to it and it no longer works.
D. He has an aerator that pumps bubbles into the tank
Mountain range; when plates are pushed together, they cause rock to push up. After thousands of years, a mountain will be formed after the molten rock cools.
Jobs.... they do different jobs.