Explanation: The water cycle is when water changes state of matter starting at water than evaporation ( water rising in the air) to condensation ( the formation of a cloud) to precipitation (when it rains) and than repeat. hope this helped.

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3 years ago

Plaque assays are often used to estimate the number of virions in a sample of a particular volume (the titer). The count is give

kherson [118]

Answer:

c) The largest problem is that single viruses may create multiple plaques, resulting in overestimates of the number of viruses present.

Explanation:

Plaque-based assays are the accepted method used for finding virus concentration in terms of infectious dose.
Viral plaque assays determine the number of plaque forming units (pfu) in a virus sample, which is one measure of virus quantity.

7 0

3 years ago