caused mixed emotions in the Indians because the animals severely damaged important croplands. Not only did North America receive animals‚ but new plants too; America received plants such as black pepper‚ barley‚ wheat‚ rice‚ lettuce‚ sugarcane‚ and rhubarb. They received domestic plants‚ animals and other goods from Africa‚ Asia and India as well. The Old World also exposed North America to numerous infectious and contagious diseases: including bubonic plague‚ chicken pox‚ cholera‚ influenza‚ leprosy
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How to Make Homemade Pesticide Things You’ll Need * Spray bottle * Dedicated blender or food processor * Protective gloves Read more: How to Make Homemade Pesticide | eHow.com http://www.ehow.com/how_2043716_make-homemade-pesticide.html#ixzz2L1VJ1Ivu Instructions 1. * 1 Mix homemade garden sprays using water and plants (or dried powders) from the garden such as hot peppers‚ onions and garlic. Add a drop of dish detergent to help the solution stick and store in a
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a large volume of water enters the cell‚ it swells causing the membrane to push against the cell wall which is called turgor pressure. When the water moves out of the cell‚ the membrane shrinks away from the cell wall and becomes a loose cell‚ plasmolysis. This causes the plant to wilt‚ as the cells can no longer provide support for the leaves. Figure1. How Osmosis works As already known‚ proteins in our cells do many things. One of the most important things they do is act as an enzyme. An
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Catnip Catnip is a perennial herb found growing wild throughout native to Europe and southwestern to central Asia where it is thought to have originated. The leaves are heart-shaped‚ toothed‚ opposite and covered with fine downy hairs especially on the under sides giving the whole plant a grayish green appearance. They have an aromatic mint-like flavor Chervil although many people may not be familiar with chervil‚ it has been around for a long time. Aristophanes‚ a playwright of Ancient
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TERM – 1 SYLLABUS 2012-201– 1 SYLLABUS 2012-2013 CLASS XI (SCIENCE) Subject Topic Practical English 1. Hornbill – The Portrait of the Lady‚ a photograph Snapshots – The Summer of the beautiful white horse The Canterville ghost – Chapter 1 Writing – Article writing‚ Note making Grammar -Determiners 2. Hornbill – We are not afraid to die if we can be all together Snapshots – The address The Canterville ghost – Chapter 2 Writing – Speech writing Grammar – Tenses 3
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pressure ( also known as osmotic pressure). The pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis‚ often used to express the concentration of the solution 5. What occurs when plasmolysis takes place? The cells shrink and shiver. 6. Define the terms endocytosis and exocytosis . * Endocytosis: the taking in of matter by a living cell by its membrane to form a vacuole. * Exocytosis: Large molecules that are manufactured
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NAME: MISS MIFE MEKADESE CLASS: GRADE 5 EXTRA-ORDINARY HOME ECONOMICS PROJECT THE IMPORTANCE OF FRUITS AND VEGETABLES FRUITS Fruit is a pluppy or juicy plant part (as rhubarb or a strawberry) that is often eaten as a desert and is distinguished from a vegetable e.g. Cherry‚ lemon. IMPORTANCE OF FRUITS 1. Fruits‚ eaten raw or consumed as fresh juice‚ are excellent ways to retain and balance the moisture level in the body. The low level of sodium in fruits plays an important
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SECTION I (40 Marks) Attempt all questions from this Section Question 1 (a) Name the following: (i) The respiratory pigment found in erythrocytes. (ii) The organ that produces urea. (iii) The part of the chloroplast where the light reaction of photosynthesis takes place. (iv) The Vehicular Standard for controlling air pollution. (v) The part of the ovary that produces progesterone. [5] (b) State whether the following statements are true or false. If false‚ rewrite the correct form of the
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Name Period Chapter 7: Membrane Structure and Function Concept 7.1 Cellular membranes are fluid mosaics of lipids and proteins 1. The large molecules of all living things fall into just four main classes. Name them. Explain what is meant when we say a molecule is amphipathic. 3. In the 1960s‚ the Davson-Danielli model of membrane structure was widely accepted. Describe this model and then cite two lines of evidence that were inconsistent with it. 4
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Osmosis is the movement of water from an area of high concentration to an area of low concentration across a semi permeable membrane. An osmotic system is established when a semi-permeable membrane is placed between two solutions. In this biological systems context‚ osmosis is the exchange of water between the potato cell and the surrounding medium of varying sucrose concentrated solutions‚ with the plasma membrane being the semi- permeable membrane. Because water molecules have kinetic energy‚ they
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