Parasitism occurs when one species feeds on another organism by living on or in the host. Mutualism occurs when two species interact in a way that benefits both. Commensalism is a species interaction that benefits one species but has little‚ if any‚ effect on the other. Ecological succession is the gradual change in species composition in an
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Goldfish Research Report The fascinating creature called Carassius gibelio more commonly known as the goldfish have many interesting talents and features. Goldfish are very nice animals that people don’t know much about‚ and people don’t care about. Gold fish can see four different colors red‚ green‚ blue and the most interesting because humans can’t see it‚ ultra violet (Curious Kids Press Goldfish). A goldfish is a beautiful and compelling animal that people should learn more about. A goldfish
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Data Sheet Animals found inside the quadrats: Animal names | Number of Individuals | | Quadrat 1(near sea water) | Quadrat 2(intertidal zone) | Quadrat 3(splash zone) | Periwinkles | 0 | 16 | 0 | Barnacles | 0 | 19 | 0 | Bivalves | 0 | 10 | 0 | Hermit crabs | 15 | 0 | 0 | Snail | 1 | 0 | 0 | Animals found outside the quadrats: Animal names | Nos. | Micro-habitat | periwinkles | 42 | Rocky shores | oyster | 20 | Rocky shores | sea cucumber | 51 | Gravel beds offshore
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1. Human population growth prehistoric times to the present…. a. Has slowed considerably over the last 50 years b. Follows an S-shaped curve. c. Has been strongly influenced by density-dependent factors d. Exhibits large oscillation around K e. Roughly fits an exponential curve 2. The experimental design used in the Ribeiroia limb abnormality study ensured that the individuals handling the tadpoles‚ examining the adult frogs and compiling the data did not know which treatment (if any)
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Section 1: Manatees belong to the order Sirenia‚ which also includes the manatee’s relative in the Pacific‚ the dugong‚ (Dugongdugon). Sirenians evolved from four-footed land mammals more than 60 million years ago. The presence of tiny pelvic bones in manatees‚ shaped differently in males and females‚ is evidence of their terrestrial ancestry. The closest modern relatives of the Sirenia are elephants‚ aardvarks‚ and hyraxes‚ small furry mammals that resemble rodents. These animals are large‚ fully
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procession of life 2. Distribution and abundance of species 3. Fit of form and function Evolutionary Ecology relation between ecological processes and adaptive evolution. Examples of ecological processes are predation‚ competition‚ disease‚ mutualism‚ etc. Adaptation: Fitness – per capita growth rate of species‚ gene‚ a phenotypic strategy ‚ it is a rate Guiding bedrock Principles: 1. Population of all organism can grow exponentially under ideal conditions: a. 1st Law of Ecology:
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1. Parasitism - one organism‚ known as a parasite‚ lives in or on the other organism‚ known as the host‚ from which it derives nourishment. It is not in the best interest of the parasite to kill the host. 2. Deserts - receive less than 25 centimeters of rain per year; windy. 3. Tundra-permanent frozen layer-permafrost; found north of Taiga and in small patches on the mountain tops called alpine tundra. No trees can live here. During a brief 2 month summer‚ the top layer thaws‚ and many
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By evaluating the duality of illustrations as both mechanisms for pictorial representation and the process of narrative clarification‚ the images in Shel Silverstein’s picture book The Giving Tree (1964) consequently solidify as the dominant mode for communicating the text’s overall themes to the reader. In visually presenting the pattern of action of personification and sacrifice‚ and the recurring image of isolation‚ Silverstein’s illustrations actively portray one such theme of the destabilizing
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Chapter 1 Environment- All external conditions‚ factors‚ matter‚ and energy‚ living and nonliving‚ that affect any living organism or other specified system. Non-Point Sources- Broad and diffuse areas‚ rather than points‚ from which pollutants enter bodies of surface water or air. Examples include runoff of chemicals and sediments from cropland‚ livestock feedlots‚ logged forests‚ urban streets‚ parking lots‚ lawns‚ and golf courses. Compare point source. Scientific Principles of Sustainability-
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READING MATERIAL 1. Explain the three hypotheses for the recent changes in the toxicity of venom in different species of rattlesnakes found in the United States. - Interbreeding between snakes with different venom profiles. - Geographic distribution (genes shifted eastward) - Convolution - Old rattlesnakes have high concentration of toxic. 2. What is an “evolutionary arms race”? Describe how this applies to one of the hypotheses suggested to explain toxicity of venom in rattlers
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