Answer:
The original water sample contains 830,000 cells per milliliter.
Explanation:
A sample of well 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. One milliliter of the fourth dilution tube is plated in a pour plate. After incubation, the plate has 83 colonies, indicating that the original water sample contained 830,000 cells per milliliter.
The layer of the atmosphere where most of the weather happens is called the troposphere.
Answer:
Domains
Explanation:
All Biological organism can be classified or placed in a group.
Taxonomy is a branch of science that deals with naming and classification of biological organism based on shared characteristics.
In taxonomy, a domain is the highest order of classification or ranking ,its even higher than the kingdoms.
It is inclusive of all biological grouping.
All cellular organisms can be placed in any of the three domains namely, Bacteria, Archaea and the Eukarya.
