Insects
.... consists of a
brain receiving information from eyes, antennae, and controls the whole body and
2 nerve cords containing ganglia fused together to control activities of the
segment without the help of the brain. insect muscular system is made up of a
few thousand samll but string muscles allowing the insect to carry objects
heavier than it. The digestive system is basically a long tube where food enters
the mouth to the crop where it is stored, gizzard where it is grinded, stomach
where it is digested, then the undigested parts and wastes are moved to the
intestine, colon then released at the anus. And in the reproductive system .....
|
|
Introns And Exons
.... are much longer than the mRNA molecule needed to code for its protein.
The regions that do not code for amino acids; aa, are scattered all along the
coding region. The genes are split with coding regions, called exons, short for
expressed regions; in between the exons the non-coding region called introns
exist. Before the translation of mRNA the introns must be spliced off.
Splicing is an complicated process for the cell. It must locate every intron in
the primary transcript. An average mRNA consists of eight to ten introns, some
even contain sixteen introns. exons, like introns are also spread apart. Some
of their codons ma .....
|
|
Investigation Of Reproduction And Development In Animals
.... similar to oestrogen and progesterone, the woman’s natural hormones
which regulate the menstrual cycle. The pill is on of the most popular methods
of birth control.
How does it work?
The pill basically prevents ovulation, therefore, the ovaries can’t release a
mature egg. Without an egg for the sperm to fertilize , a woman cannot get
pregnant . The hormones also increase cervical mucus, making it difficult for
sperm to pass into the uterus.
How effective is the pill?
If used correctly, the pill is highly effective. It has a less than one percent
failure rate. However, because many people misuse it, the actual f .....
|
|
Cryogenics: Is It Worth Waiting For
.... The science of cryobiology was first recognized in
the early nineteen sixties. Cryobiology is the study of the effects of
extremely low temperatures on living animals and plants. The chief concern in
cryobiology is to preserve living matter for future use. This method can also
be called cryopreservation. Cryotherapy is the use of extreme cold in treatment.
The first trials of cryotherapy proved with great results (“Cryobiology”
Comptons 1, McGrady 97).
Frozen cells can be kept alive for very long periods of time in a state
of “suspended animation.” Almost immediately after rapid thawing, the frozen
cells regain normal activi .....
|
|
Recognizing Laboratory Safety
.... and Conclusion:
1. The person is not wearing safety goggles and he isn't really paying close
attention. Safety goggles are vital when you are working with fire.
2. She is pointing the vial towards herself. Whenever you are working with
heating liquids, the vial should never pointing towards you.
3. The person is heating a liquid with a top on the beaker. Whenever you are
heating a substance, there should never be a top on the liquid.
4. The lady is drinking out of the beaker. You should never do that. You also
should never eat at a lab station
Conclusion:
In this lab, I learned what certain signs mean. I also learned .....
|
|
Project Mercury
.... Jr., and Alan B.
Shepard, Jr. Of these, all flew in Project Mercury except Deke Slayton who was
grounded for medical reasons. He later became an American crewmember of the
Apollo-Soyuz Test Project.
The Mercury module was a bell shaped craft. Its base measured exactly
74.5 inches wide and it was nine feet tall. For its boosters NASA chose two U.S.
military rockets: the Army’s Redstone, which provided 78,000 pounds of thrust,
was used for suborbital flights, and the Air Force Atlas, providing 360,000
pounds of thrust, was used for orbital fights. The Mercury craft was fastened
to the top of the booster for launch. Upon .....
|
|
The Language Of The Cell
.... is a
polysaccharide matrix called the cytoplasm, where organelles can be found. The
organelles are attached to a framework. The cell’s cytoskeleton.
Every living cell has the ability to detect signals from it’s
environment. The signals are usually in the form of chemical molecules, that
the cell has learned to recognize. The cell decodes these molecules into
messages, and acts upon them. The cell has a “language”. Signals and messages
are carried by particles of matter that have a very low energy requirements.
There are many, many signals rumbling around the cell. It was thought that the
cell would confuse itself in all of .....
|
|
The Entertainment Universe
.... stop their dance.
Instead the man becomes entirely deranged, screaming at the body of the young
man that he is now going to hell where he rot in flames of agony for eternity.
The crowd roars and the man laughs.
What do you suppose would now transpire? At the very least the man and
the crowd would be arrested. More than likely there would be several charges of
third degree murder laid, certainly with several convictions. The preacher would
most likely be taken to a hospital for a psychological examination, be diagnosed
a paranoid schizophrenic, and be placed into an institution for the criminally
insane for the rest of his life. .....
|
|
Life Of Octopus Dofleini
.... life span, however the male octopus only
lives a few months after breeding, and the female will die shortly after the
eggs hatch.
Incubation can take from 150 days to seven or more months. The female
may produce any where from 20,000 to 100,000 eggs over a period of several days.
During incubation the female octopus will take to cleaning and aerating the eggs.
This takes place at a depth of less than 50 meters
LIFE SPAN OF O.DOFLEINI
After hatching, the baby octopus (or larvae) take on the role of
plankton, drifting around the ocean feeding on neuston (dead food) as opposed to
hunting live prey. This stage on an average l .....
|
|
Lipids
.... from passing
through it. The lipids that are waxy are usually used to make protective
coatings on the surface of plants and animals.
Since a lipid is an organic compound it contains carbon. They also contain
hydrogen and oxygen, but in some very complex chains there is also phosphorus
and/or nitrogen. Lipids are made by the dehydration synthesis of glycerol and
fatty acids. This is when three molecules of fatty acids combine with one
molecule of glycerol by taking water out of the solution. Lipids are always
huge molecules, which means they have a lot of energy like twice as much as
sugar. This is because more energ .....
|
|
The Roswell Incident
.... Jesse Marcel, the
Intelligence Officer of the 509th Bomb Group and one of the first military
officers at the scene.
On January 12, 1994, United States Congressman Steven Schiff of Albuquerque, New
Mexico, announced to the press that he had been stonewalled by the Defense
Department when requesting information on the 1947 Roswell event on behalf of
constituents and witnesses. Indicating that he was seeking further investigation
into the matter, Congressman Schiff called the Defense Department's lack of
response "astounding" and concluded it was apparently "another government cover-
up."
History has shown that unsubstantiated of .....
|
|
Manatee
.... and when alarmed
they emit chripy squeaks.
The number of manatees has been reduced over the past several years due
to heavy hunting for their hides, meat, and blubber oil. Some governments,
including the United States, have placed the manatees under the endangered
species list. One practical reason for this is that they have proved useful in
clearin girrigation and transport channels clogged with aquatic plant life.
There has also been an increase in manatee death due to passing boats that speed
through channels.
If we all do not help protect these sea cows today then they will not be
around for future generations to enjoy. .....
|
|
|
