All plants
A. have cell walls of cellulose.
B. both gametophyte and sporophyte generations.
C. cells with chloroplasts.
D. All of the above are correct.
D. All of the above are correct.
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Use of cytokinins has had wide application in the horticultural industry because cytokinins are used in:
A. tissue cultures B. fruit production C. stem elongation D. flower maturation E. root development
Stomatal opening requires each of the following conditions, except
A. expenditure of energy. B. a reduction of turgor in the guard cells. C. water entering the guard cells by osmosis. D. a lower water potential in the guard cells. E. pumping of potassium ions into the guard cells.
When a usable organic electron donor is present, sulfate serves as a terminal electron acceptor during anaerobic respiration by ________.
A. Desulfonema B. Desulfovibrio C. Archaeoglobus D. All of the choices are correct.
________ is a property of soils that is determined by the different sizes and types of particles in soils
Fill in the blank(s) with correct word