An open system in which the growth rate is maintained by the removal and addition of media at such a rate as to maintain a constant cell density is called a
A. culturostat.
B. chemostat.
C. turbidostat.
D. manostat.
Answer: C
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Erosion of soils is of major concern throughout the world and happens mostly because of what factor?
A. Soils are exposed and not covered by plants. B. heavy rainfall C. Soils are exposed to winds. D. Soils are not kept fertilized. E. Soils are frequently flooded.
Differences in patterns by which muscles connect to bones is relatively invariant in vertebrates
Indicate whether the statement is true or false.
Select all mechanisms by which glucocorticoids raise the blood glucose level.
A. production of glycogen B. metabolism of fatty acids C. conversion of amino acids to glucose
What is the goal of bioremediation?
A) to improve human health with the help of living organisms such as bacteria B) to clean up areas polluted with toxic compounds by using bacteria C) to improve soil quality for plant growth by using bacteria D) to improve bacteria for production of useful chemicals