But it was not until 1928 that penicillin, the first true antibiotic, was discovered by Alexander Fleming, Professor of Bacteriology at St. Mary's Hospital in London.
B. Ovulation would not happen
A hydrometer or areometer is a <span> instrument that always </span><span>measures the specific gravity relative density of liquids and the ratio of density of the liquid to the density of liquid to water.
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Answer: Answer is below in the explanation.
Explanation:
As shown in the animation from my school, a DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin. Chromatin, in turn, loops and folds with the help of additional proteins to form chromosomes.
(Link my school used https://www.biointeractive.org/classroom-resources/how-dna-packaged )
Answer:
single "golden poison frog" harbours enough poison to kill 10 grown men, making these frogs perhaps the most poisonous animals alive. They are one of many species of toxic frogs, which are known as poison dart frogs. They are all small: the largest are no more than 6cm long, and some are just 1.5 cm. How did these tiny, beautiful creatures become so poisonous,
Explanation:
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