Which of the following allowed Fleming to recognize the pattern of the Penicillium mold killing bacteria? A. He was a scientist trained in the craft of scientific observation.

B. He saw a similar pattern when he used an antibiotic to kill plated bacteria.

C. He knew that Penicillium killed bacteria, so he was prepared to make the observation.

D. He had previously seen a similar pattern when a tear fell on a Petri dish of bacteria.

Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?