The rest are incorrect:Bath salts can produce anxiety, agitation, hallucinations, and paranoia even in low doses, not just when used at high doses.Bath salts cannot cause a rapid drop in blood pressure and heart rate, instead it causes rapid increase when ingested, snorted, or injected.Bath salts are not synthetic drugs like mdma (methylenedioxy-methamphetamine).
EDTA inhibits the activity of DNase during DNA isolation process.
DNase is an enzyme which degrades DNA using divalent metal ions like Mg^{2+} . These metal ions act as cofactor for the proper functioning of DNase.
EDTA chelates the divalent metal ions and thus does not allow DNase to access them.
Therefore in this way DNA is prevented from degradation during its isolation.
Texas gulf coast is where hurricane harvey occured
Correct answer: False
A primary source provide the first hand proof and the original information of the event, object, person or work.
Example: Research data, e.g. public opinion polls, speech
Secondary source is that source of information that is not performed or collected by the individual but it is taken from old information. It is updated by someone who is not participation in the event or the research.
Example: Library, ebook, reviews.
