aphids, bacteria K selection: * K - selected species have superior competitive ability in stable environments where rapid population growth is unimportant as the population is maintained near K Ways to categorize/class species: * By biome or community type * By life history strategy * By life reproductive strategy * By basic approach to the environment What governs the distribution of species? * Evolutionary factors populations separated on to geographically distinct
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Agriculture in Brazil Agriculture represents a big share of Brazilian economy ever since it was still a colony of Portugal. The first product consolidated was sugarcane, then coffee and later dairy. Brazil is now the third biggest agriculture exporter behind the USA and European Union only. The factors responsible for Brazil’s growth in global scenario are the available natural resources (soil, water and light), the diversity of products offered, the growth in agriculture area and productivity
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Chrysophyta | Sample 2: Annelida | Sample 3: Arthropoda | Sample 4: Amphibia | Sample 5: Aves | Common Feature | Unicellular, primary producers| Segmented body | External skeleton and segmented body | Can obtain oxygen from aquatic and terrestrial biomes | Able to fly; covered with feathers | NutritionHow does the organism break down and absorb food? | Autotrophic | Heterotrophic: Earthworms eat their way through dirt, so they are detritivores. | Heterotrophic: Some are vegetarian, some are carnivorous
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Dinosaurs of the Jurassic Period Jurassic Period- 206-144 mya • Took place roughly 210 million years ago. • Lasted around 70 million years • This was the second(middle) period of the three divisions of the Mesozoic era. • Age of the Dinosaurs, first bird life. Bower proclaimed that the "Triassic period began about 20 million years ago, and the Jurassic period began 210 million years ago"(1986). During the Mesozoic, or "Middle Life" Era, life diversified rapidly and giant reptiles, dinosaurs
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not have the distinct white head that the adult eagles do. Another factor that can make identification of young eagles challenging in the area of observation is the similarities to the Golden Eagle that, while not as prevalent, also reside in the biome. (Clark, 1983). Mature Adults Mature adult bald eagles have distinct white plumage on their head and tail. The bill, legs and feet are bright yellow while the body and wings are dark brown. Female bald eagles are larger than males, with wider
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Homeostasis within the body can be measured by the main vital signs: heart rate, temperature, respiratory rate and blood pressure. pH is also important to measure homeostasis, but cannot be readily measured without drawing blood. Each of these measurements are controlled by body systems, that work together to maintain proper ranges. The metabolism is a measurement of the chemical energy needed to run these systems, which are fueled by cellular respiration, a process that breaks down glucose and converts
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The first question that arises when it comes to the story of forest fires is: What exactly is fire? This question can simply be answered that it is a chemical reaction involving fuel, oxygen and heat. The molecules of a combustible substance move around at an ever more rapid pace as the substance heats until it ultimately combusts totally. When this combustion takes place, the chemicals in whatever substance is being heated are broken down and combined with the oxygen present in the air, with the
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Deforestation has become a serious global issue which is resulting in many negative effects such as a loss of biodiversity, land erosion and climate change. Deforestation can be broadly defined as “forest conversion and different types of degradation that reduce forest quality” (Sven, 2000). The Food and Agriculture Organisation (FAO) provides a narrow definition: “depletion of tree crown cover to less than 10% as the deforestation” (FAO, 1993: 10). Forests play a significant role in humanity’s life
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Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Greater biodiversity implies greater health. Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions support fewer species. Rapid environmental changes typically cause extinctions. One estimate is that less than 1% of the species that have existed on Earth are extant
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the rainforest ecosystem; a person can gain a basic understanding of why scientists and ecologists alike are concerned about the disappearing tropical jungles. Rain forests have the most complex and species rich ecosystems on Earth. A rain forest biome is very complex; including a myriad of different species or plants and animals that have all adapted to lots of rain. They have different levels of plants; the highest level are full of tall trees and they are for the closed canopy. Vines are the
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