Answer:
It's B
Explanation:
Temperature rise will eventually end up putting coral reefs into the high threat categories, not fishing and DEFFINITELY not lowering their "risk" factor.
<span>C. It binds to the coding region and adds nucleotides to the growing end of the DNA.
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Answer: I believe it is C.
Answer:
Neither observer nor subjects know which subject receives the vaccine and which receives a placebo
Explanation:
In a double-blind study neither the participants nor the experimenters is aware of who is receiving a particular treatment.
Its used to prevent bias in research results from demand characteristics or the placebo effect
