A slower than normal heart rate is called
a. tachycardia.
b. bradycardia.
c. hypocardia.
d. hypercardia.
e. hypothermia.
B
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Four small bags are filled with a 10% starch solution. The membrane of each bag contains microscopic pores large enough to let smaller water molecules cross but too small for the larger starch molecules to cross.Each bag is placed in a separate beaker as follows:Bag 1 is placed in distilled water containing no starch (0% starch).Bag 2 is placed in a solution of distilled water and 5% starch.Bag 3 is placed in a solution of distilled water and 10% starch.Bag 4 is placed in a solution of distilled water and 50% starch.The bags are weighed initially and at regular intervals for a specific period of time. Some bags saw a change in weight, and some did not. Answer the following questions based on the expected outcomes of this experiment.a. Which bag should weigh approximately the same at the
end of the experiment as it did at the beginning of the experiment?b. Which bag is expected to be the heaviest at the end of the experiment?c. Which bag is expected to be the lightest at the end of the experiment? What will be an ideal response?
This molecule combines with CO2 to form the 3-carbon substance, 3-phosphoglycerate.
A. glyceraldehyde-3-phosphate (G3P) B. glucose C. ribulose biphoshpate (RuBP) D. glycerol E. nicotinamide adenine dinucleotide phosphate (NADPH)
Water potential is especially important when considering the plant's need for:
A. fertilizers B. vitamins C. water D. osmotic adjustment E. dissolved solutes
It is notoriously difficult to perform unbiased studies when human subjects are used. When governmental agencies such as the U.S. Food and Drug Administration (FDA) are trying to determine the validity of scientific claims, they very closely examine the
methods used in the experiments. What are the three phases of clinical trial, and which one(s) must a drug pass in order to be sold in U.S. markets? What will be an ideal response?