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- TOPIC: SEEDLESS VASCULAR PLANTS IDENTIFICATION 1. The dominant stage in the life cycle of ferns, horsetails and whisk ferns. 2. This refers to a moss-like vascular plant with prostrate stems and has strobili that bear two types of spores. 3. These are cell wall impregnations in the endodermis of higher plants that enables the route of water and nutrients to flow via the plasma membrane.PLEASE ANSWER THE 2 QUESTIONS BELOW: 1. In the vascular bundle of the Ranunculus stem cross section, is the xylem closer to the epidermis or pith? Which vascular tissue has larger diameter? Which tissue has thicker walls and which tissue provides greater support? 2. Enumerate and describe five different plant species with stems that are modified for asexual reproduction.Question #1. Briefly discuss and compare the plant habit and reproductive structures of the representative species of seedless vascular plants (Psilotum sp., Lycopodium sp., Equisetum sp., Selaginella sp., Adiantum sp., Ophioglossum sp., Angiopteris sp.)
- 10) A team of botanists discovers a new species of plant in a tropical rain forest. After observing its anatomy and life cycle, they note the following characteristics and observations:- Presence of pollen cones and ovulate cones- Diploid-dominant- Seeds- vascular tissues- Absence of anything that resembles a flowerThis plant is probably a(n) Group of answer choices moss angiosperm protist gymnosperm fern#15 Which allows gymnosperms to get their sperm to their eggs without environmental water? 1.fruits 2.pollen 3.all of these answers are correct 4.flowers 5.vascular tissuePLEASE ANSWER NUMBER 1,2,3, and 4 QUESTIONS: (with brief explanation only) 1. A difference between seedless vascular plants and plants with seeds is that? A. the gametophyte generation is conspicuous in the seedless plants, whereas the sporophyte is dominant in the seeded plants. B. the spore is the agent of dispersal in the first, whereas the seed functions in dispersal in the second. C. the gametophyte is photoautotrophic in seedless plants but dependent on the sporophyte generation in the other group. D. the embryo is unprotected in the seedless plants but retained within the female reproductive structure in the other group. 2. Biologist hypothesize that the first land plants had a low, sprawling growth habitat. Which of the following is part of the logic behind that theory? A. The low sprawling growth gave them greater surface area exposed to light for photosynthesis. B. This was prior to plants’ development of adaptations to defend themselves from predators, so by growing…
- 7. Do you think the one responsible for the diversity of plants in various terrestrial habitats is the supply of water? Why? 8. Does each type of phyllotaxy ensure maximum exposure of leaves to light? Briefly explain your answer. 9. A flower is said to be a specialized shoot adapted for reproduction. Justify this statement. 10. Do you agree with the saying, “Fruits can be a vegetable, but vegetables can never be a fruit?” Defend your answer1. Discuss what is gametophytes in human, plants and animals. 2. Define angiosperm. 3. What is dormancy? Answer 1,2,3Gymnosperms typically possess…1. sieve tube elements.2. sieve cells.3. companion cells.4. both sieve tube elements and companion cells.5. sieve cells with bordered pits.
- 1. What might be the direct consequence to liverworts if the gene for the expression of elaters is deleted? a. Leaching of special oil in the sporangium b. Desiccation of the sporangium c. Inefficient water absorption in the air d. Non-dispersal of spores in the sporangium 2. Which group of non-vascular plants has the best carbon capture mechanism? a. Bryophyta b. Chlorophyta c. Marchantiophyta d. Anthocerophyta 3. Three unknown non-vascular plant species are collected by Biology 3 students. Which characters can BEST discriminate them from one another? I. protonema II. special organelles III. seta IV. calyptra V. capsule VI. stalk a. I,III,V b. III,IV,V c. I,II,III d. II,IV,VIMultiple choice 1. In a plant species that is homosporous, antheridia and archegonia are borne on? A. a single gametophyte B. separtate gametophytes C. single sporophyte D. separate sporophytes 2. Which of the following is correct in the angiosperm? A. A female gametophyte develops from the outer layer of the ovule while; the fruit develops from the outer wall of the ovary B. A pollen tube develops from the outer layer of the ovule while; a carpel develops from the outer wall of the ovary C. A seed coat develops from the outer layer of the ovule while; the fruit develops from the outer wall of the ovary D. A seed develops from the outer layer of the ovule while; an embryo develops from the outer wall of the ovary Fill in the blanks. 1. In the female gametophyte of the ovary, one egg is associated with the __________ which is located at the __________ end.IDENTIFY: 1. The first dicot group to diverge from the gymnosperms. 2. Fungal hypha containing two distinct unfused nuclei of complementary mating types.