In 1928, the scottish bacteriologist alexander fleming discovered penicillin when he notices that the mold penicillium notatum inhibits the growth of bacteria. if fleming's discovery had been made today, how would he best quickly communicate his findings to colleagues throughout the world? a) internet b) telephone c) written letters d) scientific journals

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter

What will happen to the amount of food available as a pondwater ecosystem ages

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.