Biotechnology In environment Clean up Process - APPSC G1 Mains - Paper 4 - Section 2 - Unit 3 The term "Environment" is defined as our surroundings which includes the abiotic component (the non living) and biotic component (the living) around us. The abiotic environment includes water‚ air and soil while the biotic environment consists of all living organisms – plants‚ animals and microorganisms. Environmental pollution broadly refers to the presence of undesirable substances in the environment
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expel oxygen. The mesophyll is bounded by the upper and lower surface of the leaf blade‚ which is covered by epidermal tissue. A vascular network runs through the mesophyll‚ providing the cell walls with water and removing the food products of photosynthesis to other parts of the plants. The leaf blade is connected to the stem through a narrowed portion called the petiole‚ or stalk‚ which consists mostly of vascular tissue. Appendages called stipules are often present at the base of the petiole.
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Cabulig River is bounded by Upper Jasaan and Bobontugan. The people will cross the river using bangka or bamboo boat. People living there make use of the river as their bathing area and for washing the clothes. The Table 1 shows the phytoplankton species per station in Cabulig River. With a population density of 583 species per millilitres‚ there were twenty (20) phytoplankton species found in Cabulig River. There are seven (7) orders in the class Bascillariophyceae. Three (3) of which belongs order
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COASTAL MARINE ENVIRONMENT A Research Paper Presented to Prof. Karyl F. Dagoc Department of Biological Sciences College of Science and Mathematics MSU-Iligan Institute of Technology Iligan City In Partial Fulfillment of the Requirements of the course General Ecology Laboratory (Bio 107.2) ALGEN MARI B. CASTAÑETO BS-Bio (Mar) – II Bio 107.2 (C34-2) ABSTRACT The Philippine archipelago is mainly surrounded by marine and/or
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Materials: Plant Tissues · Laboratory knife · Distilled water · Microscope · Slide of the longitudinal section of the root tip of Zea mays · Leaf of Rhoeo spathacea · Slide of a cross section of the leaf of Ixora sp. · Cross section of the stem of Cucurbita sp. · Cross section of the stem of Helianthus · Cross section of Zea mays stem Animal Tissues · A section of the ciliated epithelium (frog’s small intestine‚ frog’s ciliated epithelium‚ cheek cells · Blood
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Malaysia is one of the countries with the most abundant types of tropical tree species available in nature. Woods and timber are important in the economic development of Malaysia especially in the import and export industry. One type of woods with such vital function is Leucaena leucocephala. It is a plant species with many branches and numerous clusters of flat pods that enveloped the seeds (Shelton et al.‚ 1994). L. leucocephala was first brought into Southeast Asia in the last few centuries by
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waiting 5 minutes. Observations and results are recorded. For the plant cells‚ 3 slides are set up and viewed under a microscope. Using forceps‚ three tiny leaves from an elodea plant are removed. 3 slides are made: one with elodea mounted in distilled water‚ one with elodea mounted in 0.9% saline solution‚ and one with elodea mounted in 5% saline solution. Observations are
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Eight different species were sampled for stomatal density: Rhoeo spathacea‚ Hibiscus sp‚ Bouganvilea sp‚ Zebrina sp‚ Ficus sp‚ Kalinchoe delagoensis‚ Cyperus papyrus‚ and Monstera deliciosa. Twelve leaf samples of each species were sampled except Monstera leaf for which twelve samples were taken from one leaf. Each lower surface had a small section painted
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PLANT LIFE IN SOFT BOTTOM COMMUNITIES 1. INTRODUCTION This paper deals with plants that are found in soft bottom communities that are either found in freshwater or marine environment. These plants are submerged therefore having different adaptation for this environment. These different adaptations were tackled in this paper as well as the physico-chemical parameters present in their environment. These plants have changes in their morphology to be able to cope with the environment. For example
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fifteen minutes intervals‚ we weight the egg and record that the weight decreases. In our second experiment‚ we use three slices of aquatic plant Elodea and add pond water one leaf‚ distilled water for the second and 20% NaCl for the third‚ then observe the cells of each leaf with a compound microscope. Under microscope‚ chloroplasts (green organelles) in Elodea tend to bound to the cell wall in pond water‚ spread all over the cell in distilled water‚ pull away from cell wall in 20% NaCl. In our last
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