Q1.(a) When a seed starts to grow‚ the young root grows downwards towards gravity. The young shoot grows upwards‚ away from gravity. (i) Name this type of plant response to gravity. ............................................................................................................... (1) (ii) Give two reasons why it is useful for a young root to grow towards gravity. 1 .......................................................................................................
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Lower Vascular Plants Lower vascular plants include divisions Lycophyta‚ Sphenophyta‚ and Pterophyta. Division Lycophyta includes club mosses and ground pines. Sporophytes of these have stems covered with small‚ scaly leaves. Sporangia appear on the upper surface of the leaves and are structures that produce spores. Lycopods have small leaves that each contains one vein that brings water to the leaf from the roots and carries away extra food. Division Sphenophyta is made up of horsetails or scouring
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The transfer of trace elements between soil and plant is part of chemical element cycling in the nature. The mobility and availability of trace elements are controlled by many factor of Climatic‚ biological and geochemical origins in nature. That means‚ to predict the uptake of trace elements by plants from soil it is important to look at several biotic and abiotic parameters the affect and control the behavior of elements in the soil. The risk to environment and human health of a given trace metals
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to be rather slow as very little growth could be observed. After the several days of being under the scorching sun the leaves of the tomato plants started to dry up and would fall off at the very touch of it. More water had to be added to them to further hydrate the plants. It was only after around 30 days that a concrete growth could be observed. The plants grew to a reasonable height and needed to be attached to a bamboo stick so as to remain stable. The growths of the tomatoes themselves were
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Function of Plants Review: Plant Structure‚ Growth‚ and Development I 1. How does the vascular tissue system enable leaves and roots to function together in supporting growth and development of the whole plant? 2. When you eat the following‚ what plant structure are you consuming? Brussels sprouts‚ celery sticks‚ onions‚ and carrot sticks. 3. Characterize the role of each of the three tissue systems in a leaf. 4. Describe at least three specializations in plant organs and plant cells that
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Goncalves‚ P.C. Cavatte‚ M.C. Ventrella‚ and F.M. DaMatta. 2009. Phenotypic plasticity in response to light in the coffee tree. Environmental and Experimental Botany 67:421-427. Valladares‚ F.‚ E. Gianoli‚ and J.M. Gomez. 2007. Ecological limits to plant phenotypic plasticity. New Phytologist 174:749-763.
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Different Kinds of Paper as Compost on the Height of a Plant Data: Quantitative: Height of Cirtrafortunella microcarpia (inches) | Set up | Start of experiment | Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | A | 23.5 | 23.8 | 24.3 | 25 | 25.4 | 26 | B | 23.5 | 24 | 24.7 | 25.5 | 25.9 | 26.3 | C | 23.5 | 23.5 | 24.2 | 24.9 | 25.4 | 26.2 | D | 23.5 | 24.2 | 24.5 | 25.3 | 25.7 | 26 | Qualitative: Plant | Classification | Overall observations: | A | Control
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secondary. In primary succession plants grow and colonize earth for the first time. In secondary succession plants inhabit and colonize earth that was once inhabited by plants life. A wildfire is one example of secondary succession. When a disturbance in the environment occurs‚ such as a wildfire‚ either part or all of the community is destroyed. The aftermath of the wildfire leaves a barren landscape open to new growth‚ vegetation‚ and re-colonization of plant species (Gurevitch et al‚ 2002)
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of bryophytes‚ seedless vascular plants and gymnosperms. Focus your answer on traits (structures or processes) that affect the success of various transitions in the life cycle. How do any of the differences you mention affect the relative success of these different groups in dry environments? All bryophytes‚ for example‚ liverworts‚ mosses and hornworts‚ have the gametophyte generation as the most dominant. Antheridia and archegonia develop on the mature plant (the gametophyte). In the presence
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title: (Plant Protection) NAME: Karl Fitzpatrick. Date: 16/12/15. Describe five specific situations where pest and disease control measures are required: Vineweevil: This is an insect that attacks a wide range of plants‚ both indoors and outdoors‚ but can be especially damaging to container plants. He needs to be controlled otherwise he will kill the plant. Adult weevils eat plant leaves during spring and summer‚ its the grubs in autumn winter attack the roots of the plants‚ plants growing
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