According to the cohesion-tension mechanism of water transport, why does cohesion occur?

a. because water molecules tend to form hydrogen bonds with each other
b. because water is pushed into the xylem by bulk flow
c. because waxy coatings on the insides of xylem keep water molecules together in the xylem
d. because evaporation removes water from the leaves


Ans: a. because water molecules tend to form hydrogen bonds with each other

Biology & Microbiology

You might also like to view...

Which set of terms is associated with animal cell division?

a. cell plate formation, cellulose, vesicles b. contractile ring mechanism, cleavage furrow, actin c. cell wall, membrane, cleavage furrow d. cellulose, actin, mitosis

Biology & Microbiology

Which method is used to prevent hemolytic newborn disease?

a. EPO injections b. Rh transfusions c. Rh antibody injections d. cross-matching e. RhoGam injections

Biology & Microbiology

When females form the reproductive unit of a population, what would the population be when one calculates a population of 50 from a life table?

A) 100 B) 25 C) 50 D) 200

Biology & Microbiology

Angiosperms are different from all other plants because only they have ___________.

A. a life cycle that involves alternation of generations B. seeds C. flowers D. vascular tissue

Biology & Microbiology