Unit 4 Ecosystems Background Introduction The abundance of a species and species diversity affect how natural resources are processed within an ecosystem. This pattern of processing contributes to functional and compositional characteristics of an ecosystem. But many ecosystems around the world are currently experiencing significant changes in species composition‚ abundance‚ and diversity due to the influence of human activity. These changes have‚ more often than not‚ led to a reduction in species
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Forensic Science Level 3 Assignment 2 Unit 2 Lisa Ashton Unit 2 Task 12 Investigating a crime scene. When investigating a crime scene before touching anything investigators must document and photograph everything‚ investigate all doors‚ windows‚ ect of any evidence of how offender got in and out of the crime scene‚ investigate every inch of the crime scene for blood‚ fingerprints‚ footprints‚ weapons‚ bullet holes‚ shell casings etc. and anything that looks out of place
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Geography Essay The biophysical environment consists of living things such as plants & animals and non-living things such as rocks‚ soils and water. It is the symbiosis between the physical environment and the biological life forms within the environment. The biophysical environment is made up of four overlapping spheres: Atmosphere‚ lithosphere‚ hydrosphere biosphere. As shown in figure (1). These four spheres are dependent upon each other. Each sphere plays a vital role in sustaining
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Lab Design “Investigate the effect of a factor on the number of stomata of a leaf.” Research Question: How do differing leaf heights affect the number/density of stomata of a leaf? Hypothesis Stomata are pores‚ typically found under the leaf (lower epidermis)‚ that control the gas exchange of transpiration‚ where water vapor leaves the plants‚ and carbon dioxide enters. I predict that the stomatal density on high leafs is higher than on low leafs. During photosynthesis the chloroplasts
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Investigating the resistance of a wire. Planning For this investigation there are a number of variables that can be chosen to change or keep the same‚ these are: · Length of the wire. · Diameter of the wire. · Type of the wire. · Temperature of the wire. Scientific explanation. All electrical conductors resist current through them to some extent. This is resistance and this affects the size of the current flow. The main dependence of resistance are: § It’s Length. § It’s Thickness
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Article on Natural environment Natural environment The natural environment encompasses all living and non-living things occurring naturally on Earth or some region thereof. It is an environment that encompasses the interaction of all living specie. The concept of the natural environment can be distinguished by components: Complete ecological units that function as natural systems without massive human intervention‚ including all vegetation‚ microorganisms‚ soil‚ rocks‚ atmosphere and natural phenomena
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Investigating the Water Potential Of Potato Cells Aims 1. To test how water potential‚ in a solution‚ affects the movement of water in and out of a cell by osmosis Prediction I predict that by increasing the water potential around the outside of the potato cell‚ (i.e. so that the water potential is greater outside the cell compared to the inside of the cell e.g. 0m sucrose) that the net movement of water into the cell will increase. This is due to the water potential being greater outside the cell
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Title: Of Mice and Men Author: John Steinbeck Protagonist: George and Lennie Antagonist: Curly‚ Society Themes: The Predatory Nature of Human Existence‚ Fraternity and the Idealized Male Friendship‚ The Impossibility of the American Dream‚ Friendships‚ Isolation‚ Confinement Quotes: “We know what we got‚ and we don’t care whether you know it or not.”‚ “I got you to look after me‚ and you got me to look after you‚ and that’s why.”‚ “Maybe ever’body in the whole damn world is scared of each other
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significance: - Mangrove forests are among the most productive terrestrial eco systems and are natural and are a renewable resource. Mangroves are not a marvel just for their adaptations but also for the significant role they play in our environment. * Mangrove ecosystem act as Buffer Zone between the land and sea. * Mangroves protect the coast against erosion due to wind‚ waves‚ water currents and protect coral reefs‚ sea-grass bed and shipping lanes against siltation. They are also
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The relationship between humans and environment has varied from the early periods of human settlement on the earth to the present day. The relationship between environment and human beings has also being varying from place to place at any given period of time. For example‚ early humans considered the environment to be dominant. They were afraid of lightning and thunder‚ dense forests‚ wild animals‚ vast oceans and large rivers‚ to name a few. The environment has considerably affected human beings
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