Answer:
A biotechnology researcher might work on creating biofuels (First option).
Explanation:
A biotechnology researcher, or <u>biotechnologist</u>, has the ability and tools to use organic matter and living beings for the manufacture of products, applying the technology.
A biotechnologist can work in the agricultural industry, pharmaceuticals, or developing products for environmental protection, such as biofuels.
Biotechnology is a <u>science applied to the manufacture of new and sustainable products, through molecular and biochemical research of organic material, plants and animals</u>, for this purpose.
The other options are not correct because:
<em> 2. The </em><u><em>design new hospital beds</em></u><em> depends on hospital engineering.
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<em> 3. </em><u><em>Testing blood for diseases</em></u><em> are performed by a bioanalyst or laboratory technician.
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<em> 4. </em><u><em>Using MRI machines</em></u><em> is performed by a radiologist or radiology technician.</em>