I think the correct answer from the choices listed above is the last option. The pollutant that <span>is transferred from soil to water by fertilizer runoff from farms and leaky septic tanks would be nitrates. This pollutant is present in fertilizers and are produced from reactions in a leaky septic tanks. Hope this answers the question.</span>
An isolated colony on a selective medium is not considered a pure culture because inhibited organisms might be masked by the colonies. This statement is true.
On the basis of their constitution or usage, culture media can be classified into various groups; these include defined, complex, selective, as well as enrichment medium.
A selective medium consists of dyes or noxious substances/chemicals which inhibit the growth of specific microorganisms but promote the growth of other microbes.
A pure culture is a laboratory culture which contains a single species of microorganism. It is free from other microorganisms.
Since selective media affects the growth of distinct organisms differently, therefore, an isolated colony formed in such type of medium is not considered a pure culture.
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It’s the control group.
The reason why is because the experimental group is the group in which they are experimenting with while the control group isn’t receiving any experimentation
Answer:
evaporation:the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure.
condensation: his is when water vapour in the air cools down and turns back into liquid water.
precipitation: released from clouds, water falls as snow or rain
Explanation:
The answer is <span>Topoisomerase.
Topoisomerase is an enzyme responsible for twisting of DNA helix. After DNA strand is untwisted by helicase enzyme, DNA must be twisted again so the normal function of DNA can be sustained. If left untwisted, the replication fork will continue to grow, the normal function of DNA will stop.</span>
