Plants adapted to arid environments A. Mesophytes B. Bryophytes C. Angiophytes D. Xerophytes • These are the hormones mainly responsible for cell elongation in phototropism and gravitropism. A. Gibberellins B. Ethylene C. Abscisic Acid D. Auxin • These are associated with fruit ripening. A. Gibberellins B. Ethylene C. Abscisic Acid D. Auxin

Plants adapted to arid environments A. Mesophytes B. Bryophytes C. Angiophytes D. Xerophytes • These are the hormones mainly responsible for cell elongation in phototropism and gravitropism. A. Gibberellins B. Ethylene C. Abscisic Acid D. Auxin • These are associated with fruit ripening. A. Gibberellins B. Ethylene C. Abscisic Acid D. Auxin

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter21: Plant Evolution

Section: Chapter Questions

Problem 15SA

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1.Spraying some plants with a combination of auxin and gibberellins will . A. promote ripening of fruits B. promote fruit formation C. preventing senescence D. enlargers’ fruit growth 2. All lowering plants belong to class . A. conifers B. angiospermae C. felicinae D. gymnospermae
4. Which structure regulates the opening and closing of the stomata? A. Accesory cells B. Epidermal cells C. Tracheary cells D. Guard Cells. 5. Spraying some plants with a combination of auxin and gibberellins will A. promote ripening of fruits B. promote fruit formation C. preventing senescence D. enlargers' fruit growth 6. All lowering plants belong to class A. conifers B. angiospermae C. felicinae D. gymnospermae
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26. these are found in almost all types of vascular plantsa. sieve tubesb. vessel elementsc. all of the aboved. tracheids27. these are thin walled cells found elsewhere in the roots or stems of plants,a. sieve cellsb. companion cellsc. parenchymatous cells28. what projections develop from the epidermal cells in the region of elongation?a. contractile rootsb. root hairsc. storage rootsd. prop roots29. what cells conduct organic compounds that are arranged end to end with pores? a. epidermal cellsb. companion cellsc. rhizoderm cellsd. sieve cells30. these tissues originate from root cortexa. velamenb. rhizodermc. root haird. collenchyma THANK YOU
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Which of the following statements is false? a. Ferns produce seeds inside sori. b. Conifers do not produce fruits. c. Both gymnosperms and angiosperms produce pollen. d. Only angiosperms produce flowers
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