Answer:
D: tidal effects of the Moon
Explanation:
to know the density of each liquid, you simply have to weigh each bottle and record them separately. Then, as the formula of density says grams per volume, first convert the volume f the containers to milliliters(ml) then you divide each mass recorded by the volume of each bottle respectively and the one who will have a density of 1.0g/ml will be water and no one else.... Hope it helped someone
If you put erythrocytes in a hypertonic solution, such is the blood with abnormally high sodium, the concentration of the solutes will be greater outside the erythrocytes. This means that the water concentration of the erythrocites is higher than that of the blood. Since the aim is to balance water concentration on the inside and outside of the cell, the water will exit the erythrocytes. They will lose water and, consequently, will shrink in size.
Answer:
Option A, Neither the researchers nor the study participants know who is receiving the drug and who is receiving the placebo.
Explanation:
In a double blind test, both the researcher and research participants are unaware of the exercise in a medical test . During the research active medication is given to some of the research participants making sure that researcher is unaware of that while observing all the participants. However, at the end of the experiment ,both the researcher and research participants get to know who has received the treatment.
Hence, option A is correct
