Fungi: The Great Decomposers
.... are heterotrophs that obtain nutrients by secreting enzymes.
kingdom there are over 175,00
diffrent species. The main object of fungi is to decompose nutrients of plants
and animals.
History
the history of fungi is not very clear because scientists have never
realy wnt in great deepth , because fungi are not needed commericaly. the
ancestors of fungi lived in shallow bodies of water about 600-800 million years
ago. Some of the things the fungi had to encounter from living out of water was,
there was more sunlight that was normally blocked be the water, and the .....
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Steps Towards An Ecosociety: Dealing With Air Pollution
.... undesirable effect of having extensive economic consequences on all
sectors of the economy. Therefore, those policies which lead to the development
of an ecosociety must be aimed at having the greatest environmental impact while
creating minimal economic distortions.
For the purpose of this essay, pollution shall be identified as follows
"...the deliberate or accidental introduction to the environment of contaminants,
in the form of either wastes or products " (Bryner, 10). This essay will deal
w .....
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Genetic Diversity In Agriculture
.... in plant crops. In certain geographical areas
there has existed a rich source of variability in crop plants but the
encroachment of civilization has reduced the natural variability inherent in
primitive plant forms and related species of crop plants. Agricultural process,
as a result of new breeding programs, has reduced rather than increased crop
variability as improved cultivars, or varieties, are planted in wider and wider
areas and old cultivars, which may contain valuable genes, are lost. Crop
f .....
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Genetic Engineering
.... allowed
geneticists to map the genes of human beings. This project is far from complete,
as the DNA sequence of humans is extremely long, yet it will eventually show
geneticists which genes are responsible for certain inherited diseases.
Identified genes could be repaired, resulting in the irradiation of inherited
diseases, such as cancer. Just last year, the locations of genes for several
diseases were confirmed and may soon be correctable. Secondly, research in
genetics has brought about a new medical f .....
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Genetic Engineering, History And Future: Altering The Face Of Science
.... its possibilities,
and answering the moral and safety questions it brings forth, the blanket of
fear covering this remarkable technical miracle can be lifted.
The first step to understanding genetic engineering, and embracing its
possibilities for society, is to obtain a rough knowledge base of its history
and method. The basis for altering the evolutionary process is dependant on the
understanding of how individuals pass on characteristics to their offspring.
Genetics achieved its f .....
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Genetic Observations Through The Studies Of Hybrid Corn, Single Gene Human Traits, And Fruit Flies
.... the
transmission of traits from generation to generation. Mendel followed traits
for the P generation, F1 generation, and F2 generation. The P generation is the
original true-breeding parents. Their hybrid offspring is the F1 generation,
the first filial. The F2 generation is the second filial and is the self-
pollination of the F1 hybrids. It was predominantly his research on the F2
generation that led to Mendel’s Law of Segregation and Law of Independent
Assortment (Campbell, 1996).
Mendel’s Law .....
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Genetic Engineering
.... for example: -
improve vaccines against animal diseases such as footrot and pig scours; - pure
human products such as insulin, and human growth hormone in commercial
quantities; - existing antibiotics by more economical methods; - new kinds of
antibiotics not otherwise available; - plants with resistance to some pesticides,
insects and diseases; - plants with improved nutritional qualities to enhance
livestock productivity.
Methods:
- Manipulation of the Gene pool, which is related to Hybridization w .....
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Transitions Of Reptiles To Mammals
.... covers a span of
tens of millions of years. A lineage like this shows obvious intermediates for
every major structural change, and the fossils occur roughly (but often not
exactly) in the expected order. However, usually there are still gaps between
each of the groups. Sometimes the individual specimens are not thought to be
directly ancestral to the next-youngest fossils (e.g. they may be "cousins"" or
"uncles" rather than "parents"). However they are assumed to be closely related
to the actual ancestor, .....
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Doublespeak: Nuclear Power Plants
.... take the public's biggest fears, meltdowns and contaminations, and make
them into "events" and "infiltrations." This use of doublespeak is misleading to
the public and may make them believe that a major accident hasn't happened, or
the accident was a normal event or minor incident.
In 1979 a valve in the Three Mile Island stuck open, allowing coolant,
an important part of the plant, to escape from the reactor. An installed
emergency system did its job and supplied the reactor with necessary coolan .....
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Drugs: Glossary And Definitions
.... of
the gelatin. Administered orally.
Microemulsion:
Microemulsions are thermodynamically stable, optically transparent, isotropic
mixtures of a biphasic oil-water system stabilized with surfactants. The
diameter of droplets in a microemulsion may be in the range of 100 A to 1000 A.
Microemulsion may be formed spontaneously by agitating the oil and water phases
with carefully selected surfactants. The type of emulsion produced depends upon
the properties of the oil and surfactants utilized.
Ointment:
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The Future Of NASA
.... pacemaker is a form of life-support on
spacecrafts, helping astronomers' hearts pump while they are outside of the
Earth's atmosphere. It is used, on Earth, for those who's hearts have problems
with pumping blood. Pens that write upside-down are used in space, where there
is no gravity and writing with pens would otherwise be impossible. They are
convenient tools on Earth when we are trying to write on vertical surfaces. A
zero-gravity training system is used to help astronauts become more comfortable .....
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The Greenhouse Effect
.... severe environmental agitation. An example of a runaway greenhouse effect
is Earth's near-twin planetary neighbor Venus. Because of Venus's thick CO2
atmosphere, the planet's cloud-covered surface is hot enough to melt lead.
Water vapor is an important "greenhouse" gas. It is a major reason why
humid regions experience less cooling at night than do dry regions. However,
variations in the atmosphere's CO2 content are what have played a major role in
past climatic changes. In recent decades th .....
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Human Cloning Isn't As Scary As It Sounds
.... person from his or her non-contemporaneous
twin. To think otherwise is to embrace a belief in genetic determinism—the view
that genes determine everything about us, and that environmental factors or the
random events in human development are utterly insignificant. The overwhelming
consensus among geneticists is that genetic determinism is false.
As geneticists have come to understand the ways in which genes operate, they
have also become aware of the myriad ways in which the environment affects thei .....
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Animalia Vertebrata Mammalia Carnivora Canidae Canis Lupus And Animalia
.... as well. In Spain, two
wolves have also been identified-Canis lupus deitanus and Canis lupus signatus.
While the first is similar to many of the other European wolves, the latter may
be more closely related to the jackal (Canis aureus), than to a wolf. The
Caucasion Wolf (Canis lupus cubanensis) is found in many parts of eastern Europe
and western Asia. The large tundra wolf of eastern Asia, the Tundra or Turukhan
Wolf (Canis lupus albus), is very close in relations to the wolves of northern
Alaska. .....
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Growth Dynamics Of E. Coli In Varying Concentrations Of Nutrient Broths, PH, And In The Presence Of An Antibiotic
.... after calculations, produced fewer
cells than that of the control, these were: Chloramphenicol producing 89,3 01
cells/ml; glucose producing 411,951 cells/mL; lactose producing 477,441 cells/mL
and finally pH 6.0 producing 579,557cells/mL. The remaining four media, after
calculations, produced cell counts greater than the control: 2X with 1,087,009
cells/mL; 0.5X with 2,205,026 cells/mL; pH 8 with 3,583,750 cells/mL and finally
pH 7.0 with 8,090,325 cells/mL. From these results the conclusion can be .....
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