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Select the true statements concerning tracheids. Tracheids are responsible foranchoring the plant to a substrate. Pterophytes lack tracheids but haveeuphylls.
Without tracheids colonization ofland would not have been possible. All of the large dominant extantland plants are tracheophytes. Tracheids allow for efficienttransport of water over longer distances. Plants lacking well-developed conducting systems such asmosses, liverworts, and hornworts have been called sporophytes. Select the true statements concerning gametophytes andsporophytes. Both produce gametes. Sporophytes are alwaysnutritionally dependent on the gametophytes.
Across all plant speciesgametophytes tend to remain small. Only sporophytes produce eggs. Antheridia are located on the gametophyte. A waxy cuticle helps prevents desiccation. What is the costof this adaptation?
Slower H 2 Otransport Reduced gas permeability Lowered light absorption Increased exposure to damaging UVradiation Increased susceptibility to pathogenic infection 5. Stomata are openings used by plants for the passage of carbon dioxide, oxygen, and watervapor. Their tough seed coats negate theneed for a cuticle.
Cuticles aren't necessary whenliving in water. Modern Charophytes make up for theabsence of a cuticle by have large numbers of stomata. Charophytes have a haplodiplontic life cycle.
Stomata allow for gas exchangebetween the plant and the atmosphere. Tracheids protect againstdesiccation. Stomata transport water aroundplant body. Tracheids transport water and minerals around the plantbody. What would be the simplest way for a non-botanist to confirmthat the fern is not a small palm?
Height, all ferns are verysmall Lack of roots, palms have roots butferns do not Leaf shape, only ferns havedissected leaves Dots on the underside of the leaf, only ferns have sporangiaunder their fronds 9. Select the true statements relating to the colonization ofland by plants. Desiccation is a much more commonproblem in terrestrial environments.
Why might one of the test leaves be boiled first? Carbon dioxide. All the time. Only during the day. Only during the night. Respiration is happening faster than photosynthesis. Photosynthesis and respiration are happening at the same rate. Photosynthesis is happening faster than respiration. By osmosis. By diffusion. By active transport.
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