more commonly known as the Killer Whale‚ is a member of the oceanic dolphins family and the genus Orcinus. Orcas are highly intelligent marine animals that demonstrate unique physical traits as well as behavioral ones. Orcas must be protected to ensure balance in the ecosystem. Around 48 million years ago a species called‚ Pakicetus which has characteristic such as forward nostrils‚ forelimbs and hindlimbs for walking‚ no tail flukes evolved in a million years into another species called Ambulocetus
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between plants and people is made possible by the differences between cellular respiration and photosynthesis. While cellular respiration occurs in all living organisms‚ photosynthesis relies on chlorophyll and is unique to plants‚ algae‚ and some bacteria. Respiration and photosynthesis are essentially the same process in reverse. During photosynthesis CO2 and H2O are converted to glucose and oxygen‚ while cellular respiration uses glucose and oxygen which are converted to CO2 and H20. Plants utilize
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Dr. Sharon Moalem’s New York Times Bestseller Survival of the Sickest discusses how diseases and health conditions of the modern era have a direct connection with the results of evolutionary pressures of early human life. As the modern homo sapiens first evolved from the continent of Africa over 200‚000 years ago‚ the species would be forced to slowly develop new characteristics and adapt to changes over thousands of years. As humans began to move out of the African continent and settle in various
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type of reproduction that does not involve the union of gametes. | |two parents. | | |2. New plants are produced from seeds. |2. New individual is produced from a single parent. | Q3. Differentiate between binary fusion and budding. Draw a well-labeled diagram showing both
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Plant nutrition The elements which are required to complete life cycle of plant‚ are called nutrition elements. In the absence of any of the elements‚ plants can not complete their life cycle and these can not be supplemented by other elements. Elements required for Plant nutrition Classification These essential plant nutrients are classified into two on the basis of quantity required‚ such as – (a) Macronutrient and (b) Micronutrient Macronutrient The elements which are required in relatively
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Food deserts are defined as areas of relatively poor access to healthy and affordable food. This phenomenon is thought to be a factor in the different dietary health outcomes‚ like heart disease and obesity‚ which exist between socioeconomic classes. Even though food deserts can refer to the literal dearth of food‚ most studies consider “differential accessibility to healthy and affordable food between socioeconomically advantaged and disadvantaged areas” (Beaulac‚ Kristjansson‚ Cummins‚ 2009). In
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PLANT RESPONSES TROPISM is a biological phenomenon‚ indicating growth or turning movement of a biological organism‚ usually a plant‚ in response to an environmental stimulus. In tropisms‚ this response is dependent on the direction of the species. The word tropism comes from the Greek trope ("to turn" or "to change"). Tropisms are usually named for the stimulus involved and may be either positive (towards the stimulus) or negative (away from the stimulus). Phototropism is the growth response
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Animal Physiology Friday January 13‚ 2012 What are Animals? Invertebrates No spinal column Vertebrates Spinal column Major Animal Phyla Porifera Cnidaria Platyhel-minths Mollusca Annileda Nematoda Arthro-poda Echino-dermata Chordata What is Animal Physiology? What is Physiology? “The study of how animals work” (function) Knut Schmidt-Nielsen (1915–2007) – came up with the whole scheme of animal physiology from cell to whole organism temperature
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find it. This was a misleading journey‚ as many of the men didn’t know what they were getting into. Jack London is a well-known author who based a couple of his stories in the Yukon near Alaska. The main theme in both stories is man’s struggle for survival. In “Love of Life” and “To Build a Fire”‚ both men are lost in the Yukon wilderness. London’s style is a steraight-forward; he describes the men’s circumstances in lifelike detail. The vividness of these details sets London apart from other authors
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Formative Writing I : Identity‚ Authenticity and Survival by Kandru Manibhushan Rao Kwame Anthony Appiah’s essay on Identity‚ Authenticity and Survival is based on Charles Taylor’s earlier work on recognition and identity. Though Taylor’s references to identity are mostly to collective identity‚ Appiah’s aim is to draw a comparison or even find a connection between individual identity and collective identity. Identity A collective identity‚ explains Appiah
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