Answer:
Hello There!!
Explanation:
I believe the answer is A. To meet needs through collective effort.
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Acid rain can be caused by factors and there chemicals in the air
Acid rain effects- getting into our under ground waters, the animals might get sick from the acid rain, fish might die, animal health, and human health when it gets in our drinking water
Acid rain-meaning that it has elevated levels of hydrogen ions. is a rain or any other form of precipitation that is unusually acidic.
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A i think, i mean you get both
<span><span>The above statement is false. Compared to deep ocean water, water in the surface has the lesser supply of rich inorganic nutrients. But due to upwelling, </span>the absolute concentration of nutrients in the surface will be higher.</span>
<span>Upwelling brings those lost/sunk nutrients, plankton and carcasses to the surface. The surface then becomes feeding grounds for fish and other ocean life. </span>
Answer:
The correct answer is option E. "None of A-D is false; all are true statements".
Explanation:
The standard plate count involve different considerations including the ones listed:
A. It utilizes a standard dilution procedure called serial dilution. Most of the time culture plates have thousands of cells growing in it, it is necessary to use a standard dilution in order to make the counting feasible.
B. It measures both live and dead cells in the liquid sample. The standard plate count procedure uses a dye such as crystal violet to differentiate among live and dead cells. Both should be counted and the percentage of viability should be reported as well.
C. A countable plate in the procedure is one having 30 to 300 CFUs on it. Between 30 to 300 CFU is considered a countable plate since less than 30 will be make errors in dilution to be considerable and more than 300 is difficult to count and tend to form cell aggregates.
D. It is a viable count method to quantitate cell density of a liquid sample. This is true as long as the cells in the liquid sample are able to growth in a standard plate as well, since the cells must adhere to the counting device in order to perform the procedure.
