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Free research papers and essays on topics related to: diatoms

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  • Animal Behavior - 2,263 words
    Animal Behavior Biology lb Abstract Animal behavior is predictable. Their behavioral tendencies are influenced by the relationship of its anatomy to their environment. By observing various forms of life, and associating the mechanism of their abilities to perform a behavioral action, evolutionary influence thereafter, can be analyzed and deduced from that point. Introduction The science and study of animal behavior involve an enormous array of complicated factors. For instance, stereotyped responses are unlearned behavioral reactions to some environmental stimulus predicated upon an organism relationship to its physical environment and anatomy. This obviously begs the question; is the observ ...
    Related: animal behavior, more important, field trip, guinea pig, incredible
  • Freshwater Regions - 1,507 words
    Freshwater Regions Freshwater is defined as having a low salt concentrationusually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration (i.e, ocean). There are different types of freshwater regions: ponds and lakes, streams and rivers, and wetlands. The following sections describe the characteristics of these three freshwater zones. Ponds and Lakes These regions range in size from just a few square meters to thousands of square kilometers. Scattered throughout the earth, several are remnants from the Pleistocene glaciation. Many ponds are seasonal, lasting just a couple of months (such ...
    Related: freshwater, plant species, barrier reef, sea anemones, crucial
  • Introduction - 1,018 words
    INTRODUCTION Ecology is the study of living things interacting with its environment, other species, and its own kind. Its a study of all external condition and factors, both biotic ( living ) and a-biotic ( nonliving ), that affect an organism. To carry out this study, scientists observe different ecosystems: forests, deserts, grasslands, oceans, or any kind of interaction between organisms and their surroundings, or with each other, which are called ecosystem effects. There are four components within an ecosystem. The a-biotic component, which determines the types of organisms found there, the producers, the consumers, and the decomposers. These components cause continual change within the ...
    Related: ocean currents, natural resources, global warming, warming, ecosystems
  • Paul Klee - 1,556 words
    Paul Klee A Swiss-born painter and graphic artist whose personal, often gently humorous works are replete with allusions to dreams, music, and poetry, Paul Klee, b. Dec. 18, 1879, d. June 29, 1940, is difficult to classify. Primitive art, surrealism, cubism, and children's art all seem blended into his small-scale, delicate paintings, watercolors, and drawings. His family was very interested in the arts. The jobs that Paul's parents had were strange for 1879. His mom helped support the family by giving piano lessons. His father did the housework. He cooked, cleaned, and painted. Paul's grandma taught him how to paint. After much hesitation he chose to study art, not music, and he attended th ...
    Related: francisco goya, york city, early christian, grandma, combine
  • Species Concept - 1,265 words
    Species Concept annon Over the last few decades the Biological Species Concept (BSC) has become predominately the dominant species definition used. This concept defines a species as a reproductive community. This though has had much refinement through the years. The earliest precursor to the concept is in Du Rietz (1930), then later Dobzhansky added to this definition in 1937.But even after this the definition was highly restrictive. The definition of a sp ecies that is accepted as the Biological species concept was founded by Ernst Mayr (1942); “..groups of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups” However, ...
    Related: origin of species, species, flowering plants, homo erectus, experiment
  • Whales - 1,338 words
    Whales Blue Whales The Blue whale is the largest creature of the sea; in fact, its the largest creature known to man. Contrary to what most people think, even though Blue whales live in the sea, they are mammals. They breathe air, have their babies born alive, and can live anywhere from 30 to 70 years. The Blue whale is a baleen whale, and instead of having teeth, Blue whales have around 300-400 baleen plates in their mouths. Baleen are rows of coarse, bristle-like fibers used to strain plankton from the water. Baleen is made of keratin, the same material as our fingernails. The Blue whale is called a rorqual, a Norwegian word for furrow referring to the pleated grooves running from its chin ...
    Related: blue whale, southern hemisphere, north atlantic, life span, yellow
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