The classical astronomers concluded that heavens were made up of a sphere, because heavens were thought to be perfect and spheres (circles) are a perfect shape. It was Plato who argued that geometrical figures were spheres and everyone agreed to him. It was also believed that the perfect motion of spheres was a uniform circular rotation.
Answer:
When oxygen is scarce cellular pyruvic acid is converted to Lactic acid
Explanation:
In the absents of the oxygen, certain organisms such as yeast can convert pyruvate into carbon dioxide
Nomenclature is a system of names or terms. for instance- assigning a name to each distinct species <3