-
Effects Of Acid Acid Deposition
770 wordsAcid Rain is a type of air pollution, formed when oxides of sulfur and nitrogen combine with atmosphere moisture to yield sulfuric and nitric acids, which may then be carried long distances from a source before they are deposited by rain. This pollution may also be snow, fog, or a dry form of precipitation. Acid rain is currently a subject of great controversy because of widespread environmental damage for which it has been blamed, including eroding structures, injuring crops and forests, and th...
Free research essays on topics related to: acid rain, effects of acid, drinking water, toxic metals, acid deposition -
Carbon Dioxide Plant Growth
835 wordsSoil, superficial covering of most of the earths land area; an aggregation of unconsolidated mineral and organic particles produced by the combined action of wind, water, and organic decay. Soils vary widely from place to place. The chemical composition and physical structure of the soil at any given location are determined by the kind of geologic material from which it originates, by the vegetation cover, by the length of time that the soil has been weathered, by the topography, and by artifici...
Free research essays on topics related to: carbon dioxide, soil, plant growth, soils, 5 percent -
Dawkins Uses The Example Dawkins Explains Genes
1,178 wordsIn the popular science book, The Selfish Gene, Richard Dawkins explains his theory of evolution, and its occurrence for the good of the gene rather than the good of the species or individual. Dawkins believes the gene to be practically immortal, carrying on generation upon generation. By calling them selfish Dawkins describes a genes strategy of competition for survival, its tendency to behave in a manor suited to ensure its propagation. Genes are competing directly with their alleles for surviv...
Free research essays on topics related to: dawkins, genes, survival, gene, selfish gene -
Ebola Hemorrhagic Fever Viral Hemorrhagic Fever
1,511 words-- This report focuses on the origins of viruses and discusses the ebola virus in particular. -- This report was done to explain the origins of the ebola virus. This virus is one of the most deadly and horrific viruses known to man. To first understand the ebola virus we must first know a little bit about viruses themselves. Viruses themselves are extremely small pieces of matter. To see them with the naked there would have to be thousands of millions of single viruses joined together. Even some...
Free research essays on topics related to: ebola virus, person to person, viral hemorrhagic fever, nature of life, ebola hemorrhagic fever -
Uv Radiation Food Source
618 wordsTigriopus californians is an amazing little marine crustacean that is classified as a Harpactacoid copepod. Harpactacoid meaning its class, and copepod meaning its order. Because of its size and abundance, T. californians is commonly regarded as the insect of the sea. This creature is generally very small, from 1 - 3 mm in size as adults. They are cylindrically shaped, and have a segmented body (head, thorax, abdomen) though no noticeable division between body regions (Powlik 1966). Each segment...
Free research essays on topics related to: stages, uv radiation, food source, salinity, californians -
One Of The Main Fresh Water
480 wordsThe name Cnidaria comes from the Greek word "condos", which means stinging nettle. When you touch the nematocysts it releases barbed threads tipped with poison. There are thousands of cnidarian species in the worlds oceans. There are even some species that are found in rivers and fresh water lakes. Cnidarians have four main groups. One of the main groups is the Anthozoa, it includes true corals, anemones, and sea pens. The Anthozoans are the most famous cnidarians. They have a long fossil record...
Free research essays on topics related to: fresh water, fresh, corals, one of the main, bell -
Spindle Fibers Asexual Reproduction
512 wordsCellular Reproduction is the process by which all living things produce new organisms similar or identical to themselves. This has to happen because if a species were not able to reproduce, that species would quickly become extinct. Reproduction consists of a basic pattern: the conversion by a parent organism of raw materials into offspring or cells that will later develop into offspring. The reproductive process, whether asexual or sexual always involves an exchange in hereditary material from ...
Free research essays on topics related to: spindle fibers, asexual reproduction, phase, g 1, first phase -
Cross Cutting Relationships Bottom Are Older Principle
733 wordster> The Fundamental Principles of Relative Dating Relative dating involves placing events in their proper chronological sequence, that is, in the order of their occurrence (Dutch 1998). This type of dating tells us which geologic event happened first, but does not give an exact date to which something happened. There are several different methods that are used in relative dating. These are the fundamental methods that are used in the field by geologists' and earth scientists to gather...
Free research essays on topics related to: cross cutting, dating, relative, rocks, layers -
Destroying The Delicate Balance Crucial To Survival
901 wordster> Is mankind destroying the delicate balance between humanity and nature and endangering survival of all species? Throughout history we have been forced to adapt by perfecting ourselves socially, technologically, and physically to ensure continued existence. In the struggle for survival there is a delicate balance between nature and humanity crucial to all species. We are slowly shifting this balance in order to control nature. In doing so we are putting the well being of all specie...
Free research essays on topics related to: survival, struggle for survival, genetic engineering, genetic manipulation, engineering -
Earth Atmosphere Years Ago
1,031 wordsH. G. Wells wrote in his book, "War of the Worlds", about Martian invasion toward earth. He mentioned, "No one would have believed, in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man's and yet as mortal as his own; that as men busied themselves about their various concerns they were scrutinized and studied, perhaps almost as narrowly as man with a microscope might scrutinize the transient creatures that swarm and mul...
Free research essays on topics related to: earth atmosphere, years ago, mars, bacteria, million years -
Phylum Writing Non Writing School Phylum Writing Non Writing Kingdom
375 wordsClassification By Gerald AbdesakenClassificationClassification By Gerald Abdesaken and Justin Brown Science- 6 th period March 26, 199 Problem Investigate the method of classification used by scientists today. Hypothesis If we classify a group of random objects, then we can individualize each object. Materials List thumbtack glass slide seed rubber band test tube paper clip pin pencil match penny wool strand plastic tie chalk file card Data Kingdom 1 (School) Kingdom 2 (not school) File card pla...
Free research essays on topics related to: strand, wool, phylum, rubber, rubber band -
Survival Of The Fittest Charles Darwin
964 wordsDarwin and the Theatre Charles Darwin made himself known in the late 19 th century when he published his book On the Origin of Species. He challenged the religious philosophies of Creationism which became a very controversial topic of that era. He did not mean to attack any theological systems, but merely introduced a new theory on how human beings came to be. His studies showed that species evolved from simple organisms into more complex organisms. The two main factors included in his theory wa...
Free research essays on topics related to: survival of the fittest, natural selection, theatre, rituals, charles darwin -
Harmful Chemicals Medical Field
918 wordsToday, the use of pesticides has increased dramatically because of the growing population and the demands this population. The high increase in population means more food must be produced and spreading of diseases is more likely. Like other organisms, humans compete with other species for food and shelter and struggle to protect ourselves and predators. In order, for a stable healthy population to survive the use of pesticides must be applied to crops for greater efficiency and insecticides used...
Free research essays on topics related to: pesticides, medical field, human health, years ago, harmful chemicals -
Genetic Drift Antibiotic Resistance
920 wordsEssay on Evolution There are many mechanisms that lead to evolutionary change. One of the most important mechanism in evolution is natural selection which is the differential success in the reproduction of different phenotypes resulting from the interaction of organisms with their environment. Natural selection occurs when a environment makes a individual adapt to that certain environment by variations that arise by mutation and genetic recombination. Also it favors certain traits in a individua...
Free research essays on topics related to: natural selection, genetic drift, dna fragments, antibiotic resistance, gene pool -
Biological And Chemical Biological Weapons
1,496 wordsI Introduction 1) Definition of Biological Warfare 2) Talking Points II Biological Weapons 1) Different Types Used 2) Applications III History of Biological Warfare 1) How It Has Been Used in Past Wars 2) How We Can Expect It to Be Used in the Future IV Are We At Risk of Being Attacked With Biological Weapons? 1) Defending Ourselves Against Biological Weapons V Conclusion Nuclear, Biological and Chemical (NBC) warfare is one of the most dreaded forms of attack on the battlefield. In the last cen...
Free research essays on topics related to: biological warfare, biological agents, biological weapons, chemical weapons, biological and chemical -
Prince William Sound Exxon Valdez
262 wordsThe Exxon Valdez Oil Spill An Environmental Disaster? Presentation by Dr. Ed Gilfilan Dr. Gilfilan? s presentation was about the studies that he did after the spill of the Exxon Valdez. The Exxon Valdez ran aground on Bligh Reef and spilled 11, 000, 000 gallons oil into the Prince William Sound in Alaska. As the oil mixed with the water it turned into a thick mixture called? mousse? . This mixture came ashore on many of the islands, which was the major part why people saw this event as an awful ...
Free research essays on topics related to: prince william sound, spill, clean, valdez, exxon valdez -
Lactic Acid Unicellular Organisms
244 wordsFermentation is the breakdown of pyrrhic acid without the use of oxygen. Some scientists refer to the combined processes of glycolysis and fermentation as anaerobic respiration. The metabolism of pyruvicacid during fermentation does not produce any ATP. The function of fermentation is to break down pyrrhic acid and regenerate NAD forrest in glycols, where ATP is formed. Fermentation occurs in the forms of lactic acid fermentation and alcoholic fermentation. Lactic acid fermentation occurs in ani...
Free research essays on topics related to: unicellular organisms, acid, lactic acid, ethyl alcohol, fermentation -
Fruits And Vegetables Plants And Animals
896 wordsFoodborne illness often shows itself as flu-like symptoms such as nausea, vomiting, diarrhea or fever, so many people may not recognize that the illness is caused by bacteria or other pathogens on food. The onset of symptoms may not occur for two or more days after the contaminated food was eaten. Thousands of types of bacteria are naturally present in our environment, but not all bacteria cause disease in humans. Some of the more familiar il nesses include E. coli and Salmonella, which are may ...
Free research essays on topics related to: fruits and vegetables, microorganisms, food preservation, plants and animals, bacteria -
School Of Thought Fossil Record
841 wordsAlthough modern evolutionists are thought to be divided on the issues surrounding evolutionary theory, a close look at the evidence suggests that both the gradualist school of thought and the punctuation ist school of thought share many characteristics in common. This is especially true when evaluating their beliefs about the fossil record, disagreement with the theory of saltation, and the misinterpretation of the word? rapid? in terms of punctuation ist theory. Although this may be the case, t...
Free research essays on topics related to: evolutionary change, school of thought, evidence suggests, evolutionary, fossil record -
Principle Is Called Principle Is Called The Principle Mendel's
387 wordsGregor Johann Mendel Gregor Mendel was one of the first people in the history of science to discover genetics. He independently discovered his work and lived in Brunn, Czechoslovakia. In Brunn he was a monk and later the Abbot of the church in Brunn. While he was in Brunn he performed many experiments with garden peas. With the information he observed he wrote a paper where he described the patterns of inheritance in terms of seven pairs of contrasting traits that appeared in different pea-plant...
Free research essays on topics related to: mendel, allele, pea, alleles, mendel's
Customer center
