The yolk sac is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Answer: e
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If 1000 millimoles make up a mole, how many grams of magnesium (Mg), which has an atomic mass of 24.305, will make a solution that contains 150 µmol of Mg?
A. 3.6mg. B. 2.4mg. C. 0.24mg. D. 36mg.
In producing beer and wine, humans have exploited the microbial ability to ferment sugar to alcohol. The microbes responsible for this process are ________.
A. algae B. fungi C. protozoans D. bacteria
The Hubbard Brook Watershed project measured all of the following EXCEPT
a. amount of energy used by consumers. b. amount of nutrients washed away by streams. c. nutrient input. d. precipitation. e. uptake of nutrients by plants.
If a liver cell were to be placed in a beaker with a solution containing the same solute concentration as that found inside the cell, we would say that the beaker contained a(n) ________ solution
A) isotonic B) hypotonic C) heterotonic D) hypertonic