Multiple Choice
Which experimental observation contributed to a better understanding of translocation in the phloem?
A) Positive pressure in the xylem forced liquid out of cut aphid stylets.
B) Positive pressure in the phloem forced liquid out of cut aphid stylets.
C) Negative pressure in the xylem drew liquid in from cut aphid stylets.
D) Negative pressure in the phloem drew liquid in from cut aphid stylets.
E) Positive pressure in the xylem drew liquid in from cut aphid stylets.
Correct Answer:

Verified
Correct Answer:
Verified
Q91: Which of the following is true regarding
Q92: As water enters a cell, turgor pressure
Q93: Casparian strips are _ layers in walls
Q94: Without a Casparian strip, which of the
Q95: As a tree begins transpiring in the
Q97: When water enters the cell and the
Q98: Were it not for leaves, which of
Q99: In the late 19th century, scientists performed
Q100: Which of the following statements about the
Q101: Which statement about the use of aphids