MCQ
Two geographical regions separated by high mountains are:
- AOriental and Australian.
- BPalaearctic and Oriental.
- CNearctic and Palaearctic.
- DNeotropical and Ethiopian.
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$I.$ Antibiotics are chemical substances produced by some microorganisms which can kill or retard the growth of other disease-causing microorganisms
$II.$ Penicillin is the first antibiotic discovered by Alexander Fleming $(1928),$ while working on bacterium Staphylococcusaureus
$III.$ The function of penicillin as an antibiotic was established by Ernst chain and Howard Florey
Which of the statement given above are correct?