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Answer: Robert Koch
Explanation: In 1890, Robert Koch created a series of test to assess the germ theory of disease. In 1676, bacteria was first observed by Anton Van Leeuwenhoek. In 1859, Louis Pasteur disproved spontaneous generation and developed the germ theory of disease. In 1910, Paul Ehrlich created the first synthetic antibiotic.
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b. Renal Artery
c. Ureter
The main organs of the excretory system are the kidneys. Waste-filled blood is routed to the kidneys via the renal artery. The kidneys then filter the blood, removing excess water, salts, uric acid, and chemicals from medications or poisonous substances.
the number of protons inside the nucleus of the atom
the number of electrons outside the nucleus of the atom
the number of electrons outside the nucleus of the atom
the number of neutrons inside the nucleus of the atom
the number of neutrons inside the nucleus of the atom
none of the above
Answer: the number of protons
Explanation: