In which of the situations below would a plant be at greatest risk for the formation of air bubbles in the xylem stream?
A. during the night, when transpiration is low
B. during the afternoon, when transpiration is highest
C. in the early morning, with cooler temperatures and calm winds
D. in the day during a drought
E. the risk is the same at any time of day
B. during the afternoon, when transpiration is highest
You might also like to view...
If a fungus encountered a particularly rich food source, what would be the expected result?
A. Hyphae would branch and extend rapidly to form a mycelium. B. Hyphae would stop growing in length, but increase in diameter. C. Individual hyphae would begin to produce spores. D. Hyphae would stop growing and a fruiting body would form to exploit the food source. E. The mycelium would break down into widely separated hyphae.
How many hydrogen bonds form between adenine and thymine?
a. 1 b. 3 c. 2 d. 0
Polar fish adaptation
What will be an ideal response?
Which of the following can lead to cancer?
What will be an ideal response?