Plasmolysis is the cellular loss of water. How can a cell potentially prevent this?
(a) Decreasing proton concentrations
(b) Closing down the cell wall
(c) Increasing the cytoplasmic solute concentration
(d) Increasing the apoplastic solute concentration
Ans: (c) Increasing the cytoplasmic solute concentration
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Which of the following statements is NOT true of lophophorates?
A. Their tentacles serve both in respiration and in feeding. B. They have a U-shaped digestive tract. C. They have a true coelom. D. There are three phyla of them: Phoronida, Bryozoa, Brachiopoda. E. They are parthenogenetic.
Based on the graph above, the threshold voltage appears to be approximately
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A) 60 mV.
B) 30 mV.
C) 0 mV.
D) -30 mV.
E) -60 mV.
Do arteries always carry highly oxygenated blood? Explain your answer. What will be an ideal response?
The size and capacity of muscle fibers cannot be increased by exercise and training.
Answer the following statement(s) true (T) or false (F)