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makvit [3.9K]
2 years ago
15

An ice cube melting is an example of a(n) _________________ change because it is ________________ heat. *

Biology
1 answer:
Lady bird [3.3K]2 years ago
6 0
2. Endothermic, absorbing

Hope this helps :)
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The average annual precipitation worldwide must equal the quantity of water that _____.
densk [106]
<span>..has evaporated from all the water sources around the world (streams, rivers, ponds, seas, oceans etc).
It is am established fact that the quantity of water present on the Earth has remained constant from the beginning of time. At any given point in time it may exist in one of its three forms i.e.ice, water or water vapor but there is no variation in its total quantity (hydrological cycle).</span>
4 0
2 years ago
What is the concentration of a suspension that grew 89 colonies on a plate with a dilution of 1:100?
mafiozo [28]

Answer:

8900 CFU/mL

Explanation:

Colony Forming Units (CFU) is a value that indicates the degree of microbiological contamination of an environment. It expresses the relative number of microorganisms of a given taxon in a volume of one cubic meter of water.

UFC is the minimum number of separable cells on the surface, or inside, of a semi-solid agar medium that results in the development of a visible colony of the order of tens of millions of descending cells. The CFUs can be pairs, chains or clusters, as well as individual cells. Colony forming unit.

Calculation

Colonies * Dilution = CFU/mL

89          *  (100/ 1 mL) = CFU/mL

8900 CFU/mL

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3 years ago
Almost every cell in the human body is replaced every few years through the process of _____.
kenny6666 [7]
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They are labelled as daughter cells. </span></span>
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