____ allow oxygen to diffuse through the outer bark of woody plants to supply the respiratory needs of the underlying cells
Fill in the blank with the appropriate word.
Lenticels
You might also like to view...
Quorum sensing generally follows the mechanism of which type of regulation?
A) feedback inhibition B) negative transcriptional regulation C) positive transcriptional regulation D) two-component regulation system
Which of the following is the most suitable for
conversion to agriculture? a. grassland b. tropical forests c. deciduous forest d. prairie e. coniferous forest
Which of the following best describes mollusks?
A) They have radial body symmetry and a soft body always covered with a shell. B) They are bilaterally symmetrical and have a soft body always covered with a shell. C) They have radial body symmetry and a soft body sometimes covered with a shell. D) They are bilaterally symmetrical and have a soft body sometimes covered with a shell.
During cell division the progeny of a trypanosome express a different VSG gene than their parents. Why is this done?
A. To hide from the host's immune system. B. VSG genes inhibit phagocytosis. C. VSG genes activate photoheterotrophy. D. To signal endocytosis of the parasites.