Question 23 of 33 You have reports from four different studies of a particular drug. Each report
recommends a different plan for the drug's use, but the studies were done
differently. Which study would have produced the most trustworthy results?
A. One in which both the researcher and the patients knew who got
the drug and who got the placebo.
B. One in which neither the researcher nor the patients knew who got
the drug and who got the placebo
c. One in which the researcher knew who got the drug and who got
the placebo, but the patients did not know
D. One in which the researcher did not know who got the drug and
who got the placebo but the patients did know.

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water

Witch type of microscope is used to view very small cell components like proteins and dna?

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.