If water were being pushed from below, air bubbles in the xylem stream would not pose a problem. However, the observation that air bubbles can interrupt xylem function provides important evidence supporting the _______ theory of water movement.
A. gravity-suction
B. active transport
C. pressure-flow
D. osmotic
E. cohesion-tension
Ans: E. cohesion-tension
Biology & Microbiology
You might also like to view...
If your mother and father both have cystic fibrosis, which is caused by a recessive allele, the odds of you having cystic
fibrosis are ____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. 0
Biology & Microbiology
Hominins are ancestral to
A) humans and animals ancestral only to humans. B) humans and apes. C) humans, apes, and gibbons. D) apes and gibbons.
Biology & Microbiology
Four of the five people below influenced Darwin's writing of the book On the Origin of Species by
Means of Natural Selection. Select the exception.
a. Mendel b. Wallace c. Lyell d. Malthus e. Lamarck
Biology & Microbiology
Making mRNA from DNA is known as ____
a. translation b. transcription c. polymerase d. replication e. promoter
Biology & Microbiology