The correct answer is A.
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The statement "<span>Bright-field microscopes are used for most microscopic work. " is true.
</span>Bright-field microscopy<span> is the simplest of all the optical</span>microscopy<span> illumination techniques. Sample illumination is transmitted (i.e., illuminated from below and observed from above) white light and contrast in the sample is caused by absorbance of some of the transmitted light in dense areas of the sample.</span>
Penicillin is an antibiotic produced by a fungus.
Explanation:
The only true statement from the given options is that penicillin is an antibiotic produced by a fungus. It is used to treat a wide range of microbial infection.
- Penicillin was discovered by Alexander Fleming in 1928
- Penicilium is a fungi mold grown by fermentation.
- The antibiotics restrict the activities of enzymes by inhibiting them.
- Antibiotics are not usually effective against virus
- Antimicrobial chemicals are usually toxic to humans.
- Antibiotic resistance is a serious problem in the health industry.
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you need to ask a hypothesis
The anwser is number 2 I think,
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