Biology textbook- pg. 80 3) Distinguish between the autotrophic and heterotrophic nature of plants and animals. Animals have heterotrophic cells; hence‚ they live off nutrients of other species by eating. Most plants have autotrophic cells‚ which allow them to generate their own food with photosynthesis. 4) Explain the following statement: ‘All living things depend on plants’. As animals are heterotrophs‚ they need to eat other species to survive. If mammals only depended on other mammals‚ there
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The stylistic analysis of “The Last Leaf” by O’Henry The text under stylistic analysis is the short story “The Last Leaf” by O’Henry. William Sydney Porter was born on 11-th of September in 1862 in North Carolina. His mother died when he was three year old. Porter worked at drug store of his uncle. Then he went to Texas and tried many professions. For example rancher‚ bank teller‚ journalist‚ founding a comic weekly magazine The Rolling Stone. Then was employed by the Houston Post to write a humorous
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Evolution Unit: Objectives AP Biology Upon the completion of the textbook readings in Chapters 22-26 you should be able to: Chapter 22 1. Explain how the principle of gradualism and Charles Lyell’s theory of uniformitarianism influenced Darwin’s ideas about evolution. The basic idea of natural selection is that a population of organisms can change over the generations if individuals having certain heritable traits leave more offspring than other individuals. The result of natural selection
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processes in Biology which transform energy in one form to another. Photosythesis is the process in which light energy is converted into chemical energy to produce glucose. Cellular respiration is the metabolic process in which food is broken down to form stored energy in the form of ATP. Although both processes are found in double membraned organelles‚ photosynthesis occurs in chloroplasts in plant cells and cellular respiration occurs in the mitochondria of animal cells. Photosynthesis uses water
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have the technology and equipment to. 2. Robert Hooke is credited with the discovery of the basic building block of living organisms. 3. Robert Brown is credited with the discovery of the cell nucleus. 4. Schleiden and Schwann’s contribution to biology was proposing that cells are the basic structural unit for plants and animals. 5. Before Virchow‚ one idea was that living things could arise from non-living and from dead matter‚ a process called ‘spontaneous generation’. 6. Person B is more
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Photosynthesis The leaves are the part of a plant where most photosynthesis takes place. If you cut a leaf in half and look at the cut end‚ it would look like this: Key: 1. Waxy cuticle: this gives the leaf a waterproof layer‚ which lets in light. 2. Upper epidermis: provides an upper surface. 3. Palisade cells: contain chloroplasts. 4. Spongy mesophyll: collection of damp‚ loosely packed cells. 5. Lower epidermis: layer of cells on the lower surface. 6. Air
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problem swept Canada : Ready-to-eat meat products from Maple Leaf were found to be contaminated by a virulent strain of listeria with an unusual high rate‚ leading to s oaring death reports. It was s aid that two thirds of Maple Leaf meat samples collected from Toronto hospitals and nursing homes tested positive for the pathogen (Cribb‚ 2008). The underlying ethical issues behind the whole thing a roused controvers ies broadly. Maple Leaf‚ the active agent in this case‚ used an “industry standard”
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mesophyll‚ a higher specific leaf area‚ and improved light capture…" (Matos et al.‚ 2009). The sun leaves were described as "generally thicker with an enhanced quantity of palisade mesophyll" (Matos et al.‚ 2009). Our objective was the presence of phenotypic plasticity in avocado trees based on the differences in the morphology of shade and sun leaves. In our study‚ we asked whether there is a difference in surface area‚ length-to-width ratio‚ mass‚ specific leaf mass‚ and color between shade
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Determination of rate of photosynthesis INTRODUCTION Photosynthesis is the major process by which light from the sun is captured by plants‚ algae and some bacteria to produce energy. It is a process in which light energy is converted into chemical energy which is then stored in sugars. Photosynthesis occurs in two stages‚ light-dependant reactions and light-independent reactions. In light-dependent reactions the chlorophyll traps light energy which is then used to excite electrons and split water
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Nissan Leaf Every time you coast or apply the brakes in the Nissan LEAF® the electric motor acts as an electric generator‚ converting energy that would otherwise be wasted into battery energy. So even when you’re slowing down‚ you’re charging up. The Nissan LEAF® gets the equivalent of 130 miles per gallon. That’s right‚ 130 miles per gallon. [*] How does it achieve these remarkable numbers? With a 100% electric drive system powered by an advanced rechargeable lithium-ion battery‚ and nine range-maximizing
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