| Increased susceptibility to pathogenic infection 5.Select the best answer to complete the following statement.Stomata are openings used by plants for the passage of | carbon dioxide, oxygen, and watervapor. | | only carbon dioxide and spores orgametes. | | only carbon dioxide and watervapor. | | only carbon dioxide andpollen. | | only oxygen and carbon dioxide. 6.One of the main distinctions between charophytes and landplants is the possession of a cuticle. Why do modern charophyteslack a cuticle? | 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. 7.Select the following plant adaptations for the terrestrialenvironment that are correctly listed by their function. | 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. 8.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. | | Cuticle layers reduce gasexchange. | | Xylem tissue, seeds and stomata arefound on both plants and charophytes. | | Without trachids land plant would not have been to able to growmore than just a meter or so tall. 10.Survival on land for organisms is difficult because of theproblem of | spore germination. | | coevolution. | | desiccation. | | pollination. | | syngamy. 11. Well-developed vascular systems are absent in all of thefollowing except | mosses. | | Charophytes. | | hornworts. | | liverworts. | | Pterophytes. 12. Bryophytes, like ferns and certain other tracheophyteplants, require | soil to reproduce sexually. | | water to reproduce sexually. | | sunlight to reproducesexually. | | air to reproduce sexually. | | shade to reproduce sexually. 13.Plant success on the terrestrial landscape is linked to theevolution of all of the following except | gas-filled air spaces. | | stems. | | specialized reproductivefeatures. | | specialized roots. | | increased area for photosynthesisin the leaves. | | | | | | | | | |