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Help With Science Papers
Genetics
... the first example of cloning. A man named Hans Spemann first envisioned cloning in 1938. He suggested transferring the nucleus of an embryo into another egg. As early as 1952, two scientists, Robert Briggs and T.J. King attempted what Spemann had suggested with a frog embryo and egg. Unfortunately, the frog egg did not develop. (Specter/Kolata)
That same year, researchers in Pennsylvania cloned a live frog. The technique used was known as embryo twinning, or causing the embryo to split apart. It is much easier to clone with embryonic cells. Much later, mammals such as sheep were cloned using this process. (Nas ...
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Kangaroos
... or red flyer, M. rufus. The best-known species, the gray kangaroo, is found mostly in open forests of eastern and southwestern Australia and Tasmania. It is long-haired and silvery gray in eastern coastal regions but short-haired and dark gray inland. The red kangaroo, which is found throughout Australia's interior grasslands, is the largest and most powerful species. A male may attain a head-body length of 1.5 m; have a tail 1 m long; stand 2 m tall; and weigh 90 kg. A gray kangaroo can clear more than 9 m (30 feet) at a bound and attain a speed of 48 kilometres per hour. The wallaroo, a smaller and stockier ...
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Recognizing Laboratory Safety
... will be working with possibly dangerous chemicals.
5. The eye symbol signifies that you will be working with objects that could be
hazardous to your eyes
6. The razor blade symbol signifies that you will be working with sharp objects.
You should always be careful when working with sharp objects.
7. An electrical plug symbol means that you will be using electricity in your
lab. Never touch an electrical socket or appliance with wet hands.
8. The symbol that looks like a duck means that you will be working with live
animals.
Analysis and Conclusion:
1. The person is not wearing safety goggles and he isn't re ...
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Triceratops Hottidus: “Horrible Three-horned Face”
... body, column-like legs with
hoof-like claws, and a bony neck frill rimmed with bony bumps. It had a
parrot-like beak, many cheek teeth, and powerful jaws.
WHEN TRICERATOPS LIVED:
Triceratops lived in the late Cretaceous period, about 72 to 65
million years ago, toward the end of the Mesozoic, The Age of Reptiles . It
was among the last of the dinosaur species evolve before the Cretaceous-
Tertiary extinction 65 million years ago.
BEHAVIOR:
Triceratops was probably a herding animal, like the other
Cartesians. This hypothesis is supported by the fining of bone beds, large
deposits of bones of the same species i ...
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Intranet
... into a place that provides up-to-date, quality, instant information to anyone in the organization. Imagine a user knowing the source of information and company communicating with the producer of a product during any period of time. The provides all the functions listed in the previous statements. Also, the provides an opportunity to define an organization and display it to everyone to see. Furthermore, is not a new product that has just been recently introduced in the market. However, it just has not been widely used until the past few years. People use everyday without knowing that they are using it. , therefor ...
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Acid Rain
... combine with the
humidity in the air and form sulfuric, nitric and carbonic acid. This acidic
solution eventually condenses in the air and comes back down to the earth in any
from of precipitation (snow, rain, hail).
Upon returning to the earth, the acidic precipitation can have serious
repercussions on both the environment and as well as human structures. On
average, acid rain is about nine times more acidic than rain water, and has been
recorded as low as 2.5 on the pH scale (forty times more acidic than water.)
Acid deposition kill fish, soil bacteria, and as well as aquatic and terrestrial
plants. the acid ...
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Landfills: A Growing Menace
... volume of 2.9 billion cubic feet. In total acreage, it is equal to
16,000 baseball diamonds [Miller 526]. By the year 2005, when the landfill is
projected to close, its elevation will reach 505 feet above sea level, making it
the highest point along the Eastern Seaboard, from Florida to Maine. At that
height, the mound will constitute a hazard to air traffic at Newark airport
[Rathje 3-4]. The area now encompassed by the Fresh Kills (Kills is from the
Dutch word for creek) Landfill was originally a tidal marsh. In 1948, New York
City planner Robert Moses developed a highly praised project to deposit
municipal garba ...
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Genetic Faltering
... the future if we continue to tinker. Genetics pose a major problem to the modern day world. With the deteriorating conditions of the earth today, the use of genetics will further break down our fragile planet.
As of 1998, many experiments have been done in the field of genetics, in the next section, I will discuss a few.
First, genetics came into the public view in the early 1970’s when a scientist named Paul Berg began experimenting with a strain of E.coli bacteria called SV40. (Tagliaferro 69) This was the public beginning to the struggle surrounding genetics. Berg was not very intelligent about the way he ...
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E-commerce
... much of the frenetic growth is fueled by the Internet's obvious capabilities-e-mail, newsgroups, Web sites, and a modest amount of actual market transactions-it remains uncertain what business models and Internet functions will prove most popular and profitable over the long term. Much will depend upon how the new electronic technologies will change existing business practices, market structures, and the social habits of the workplace, marketplace, and home.
Can we discern how electronic commerce adds value to conventional marketplace transactions, making the Internet a preferred venue for business? Will markets of t ...
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Nervous System
... the structure of a typical neuron and
describe the function of each.
* The soma, consists of the cell body of a neuron
which further contains the nucleus.
* Glial cells interact with neurons and regulate the
extracellular environment, protect against
pathogens and repair damaged neural tissue.
* Axons are-capable of propagating nerve impulses.
* Dendrites respond to specific stimuli in the
extracellular environment.
* Synapse terminals communicate information from the
presynaptic cell to the posisynaptic cell.
Structural Classification
*Anaxonic neurons- have multiple processes and ...
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