Asample of ocean water is tested for its bacterial content in a plate count assay. a one-milliliter sample of the water is diluted in a 1: 10 dilution series. 0.1 milliliter of the second dilution tube is plated in a pour plate. after incubation, the plate has 191 colonies, indicating that the original water sample

191000 cells per millilitre

Explanation:

After incubation the plate has 191 colonies. Since each colony grows from a single cell, the plate had 191 cells.

Now only 0.1 millilitre was plated from 1 millilitre of sample hence number of cells in 1 millilitre of sample is 10 * 191 = 1910 cells.

It has been given that this sample is taken from second dilution tube of 1:10 dilution series. So total dilution here has been of 100 times. Hence, original water sample contained 1910 * 100 = 191000 cells per millilitre.

the answer is: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.