The direction of water movement across a cell membrane is determined in part by
A. the presence of transporter molecules.
B. the levels of ATP in the cell.
C. the concentration of solutes inside and outside the cell.
D. the amount of pressure inside and outside the cell.
E. the concentration of solutes and amount of pressure inside and outside the cell.
E. the concentration of solutes and amount of pressure inside and outside the cell.
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In the total organic carbon (TOC) test, microorganisms are used to measure the levels of carbon in a water sample.
Answer the following statement true (T) or false (F)
Which of the following is NOT a function of the vertebrate urinary system?
A) Eliminating cellular wastes B) Regulating body temperature C) Maintaining blood pH D) Adjusting water and ion concentrations E) Secreting hormones
A society:
A) is a network of human relations that includes ideas, institutions, and material things. B) refers to structures and processes that authoritatively make and apply rules. C) refers to a broad term encompassing a range of actions and institutions. D) is a basic way of seeing the BGS relationship.
Legumes are frequently grown in rotation with primary field crops. What is the benefit of this practice?
A) A greater amount of the primary crop can be harvested each year. B) The legumes' symbiotic nitrogen-fixing bacteria add nitrogen to the soil. C) Soil erosion is reduced by frequent plowing. D) Legumes decrease the amount of organic material in the soil.