Extraneous
Wolly42093 adaptation
Adaptation is something every living organism has to go
threw i feel. And they use it everyday, it could be as
easy as finding a new way to walk depending on the
slope or the incline on their path. It doesn't matter
adaptation happens everyday by everyone.
permalink Posted Oct 5, 2008 11:18 pm - [delete]
jcrowther
jcrowther re: adaptation
How does adaption happen everyday by everyone?
permalink Posted Oct 6, 2008 4:44 pm - [delete]
mbyers evolution:Mutation
Mutation or genetic variation comes from random
mutations that occur in the genomes of organisms.
Mutations are changes in the DNA of a cell, which can
be caused by radiation, viruses, and toxic chemicals,
as well as errors during DNA replication. These
mutations can produce several different types of change
in DNA, for example they can have no affect, alter the
product of a gene or prevent the gene from functioning.
About 70 percent of mutations are harmful and the
remainder is either neutral or is weakly beneficial. As
a result, organisms have evolved mechanics to repair
DNA in order to remove mutations.
permalink Posted Sep 28, 2008 1:09 pm - [delete]
rbarasch
rbarasch re: evolution:Mutation
this is a pretty good definition but I would add an
example. A good example would be the butterfly which
may produce offspring with new mutations. The main
happenings of these mutations may have no effect in
some cases, unlike others which might change the color
the butterfly's offspring for worse, making it harder
(or easier) for predators to see. If the color changes
the advantages are; the chance of this butterfly
surviving and producing its own offspring. This means
the offspring are a little better, and over time the
number of butterflies with this mutation may form a
larger percentage of the population. The disavatages
would be; if their colors change in which becoming
brighter and makes them more visible to predators
making them have a less percentage of being eaten.
permalink Posted Oct 5, 2008 10:32 pm - [delete]
ATurner93
ATurner93 re: evolution:Mutation
interesting: yes, changeable: no. the concept of
genetic mutation is well proven, but not 100% solid.
And no theory is, if they were, then they would be
facts, NOT theory's. one add-on idea to the mutation
idea is: if the polar ice caps melt, then most of
mankind will die because of pollutants in the water,
and the rest of mankind will evolve to survive in the
putrid waters.
permalink Posted Oct 6, 2008 4:29 pm - [delete]
1-3 of
peytongross sub topic
The sub topic I chose was addaptation. Adaptation is
when a change takes place in an enviormental
siutuation.
permalink Posted Oct 2, 2008 9:56 pm - [delete]
jrossen
jrossen re: sub topic
It would be nice if you said a bit more.
I agree that is what adaptation is and that it does
exist. A specific example is the cat. A owl. An owl is
a predator to some animals and since its prey comes out
at night, it became nocturnal, it sleeps during the day
and comes out at night. It also can see in the dark so
it can find its prey. My proof: When do you hear/see
owls more day time or night time? An animal may also
adapt if its food source changes for instance if an
animal's food source goes extinct the predator itself
my die out or it may start hunting something else,
usually something that is similar to its original prey.
Also animals may adapt just to help them in their
enviorment even when it does change, for instance A
giraffe has a long neck so it doesnt have to compete
over food with other animals when it can just reach the
food at the top. -JR
permalink Posted Oct 5, 2008 11:55 am - [delete]
harrysolasz mutation
file:///Users/harrysolasz/Desktop/mutate-lamb.jpg this
is a perfect example of of mutation that does no help
the animal.
permalink Posted Oct 1, 2008 1:56 pm - [delete]
jrossen
jrossen re: mutation
ummm that is not viewable. that is something on your
computer it isnt a link. You need to give the jpeg web
link
permalink Posted Oct 5, 2008 11:36 am - [delete]
jrossen evolution: proof of
A decent amount (possibly even the majority of in North
America) people don't accept evolution as a fact. First
part in proving evolution is the fact that all living
animals have a living parent. This part has been proven
in the last 150 years, by Louis Pasteur by showing how
fermentation happened, proving worms had parents they
didn't come from poop or dead worms. Cloning can't just
be done with some sort of little machine, you need to
use the living tissue of an animal. Living creatures
are different. Some animals are vertebrates(have a
backbone and skull) most don't (invertebrates) this
fact is undeniable. Simple animals and plants came a
long time before complex ones (invertebrates came
before vertebrates) Original fossils are of simple
living things. Eventually got more complex. Human
fossils have only been found in battlefields, grave
yards, flood deposits, etc)No one has found fossils to
prove otherwise. The logical reason for all of this is
natural selection and evolution though some people
think there is divine part in evolution.
permalink Posted Sep 28, 2008 9:43 am - [delete]
lpmarks
lpmarks re: evolution: proof of
Nice topic. Although you could talk a little more about
what evolution actually is.
permalink Posted Oct 5, 2008 10:59 am - [delete]
mbyers
evolution:Mutation
Mutation or genetic variation comes from random
mutations that occur in the genomes of organisms.
Mutations are changes in the DNA of a cell, which can
be caused by radiation, viruses, and toxic chemicals,
as well as errors during DNA replication. These
mutations can produce several different types of change
in DNA, for example they can have no affect, alter the
product of a gene or prevent the gene from functioning.
About 70 percent of mutations are harmful and the
remainder is either neutral or is weakly beneficial. As
a result, organisms have evolved mechanics to repair
DNA in order to remove mutations.
permalink Posted Sep 28, 2008 1:09 pm - [delete]
keshi_taryan-kigel
keshi_taryan-kigel re: evolution:Mutation
That's pretty much what I said. However, did you
mention that mutations in DNA can cause birth defects?
permalink Posted Sep 30, 2008 8:25 am - [delete]
mbyers
mbyers re: evolution:Mutation
naw i didn't know that. It does really? how?
permalink Posted Sep 30, 2008 1:29 pm - [delete]
lraynault
lraynault re: evolution:Mutation
It's interesting what you said, like when you explain
that organisms try to remove some mutations..
permalink Posted Oct 1, 2008 9:38 pm - [delete]
lfarbstein
lfarbstein re: evolution:Mutation
this is a very good topic.. i wanted to do it.
still there is alot to talk about here ( and not just
x-men )
so good luck
you can talk about genetic mutation, radioactive
mutation, and even mutation over time.
permalink Posted Oct 1, 2008 10:39 pm - [delete]
bhl
bhl re: evolution:Mutation
Could I mutate myself by drinking vaseline?
permalink Posted Oct 2, 2008 9:43 pm - [delete]
peytongross
peytongross re: evolution:Mutation
So can mutation be bad? it says in your thing that some
form of can make you sick.
permalink Posted Oct 2, 2008 10:00 pm - [delete]
efjacobs
efjacobs re: evolution:Mutation
Nice topic. When it comes to mutation being bad, is
there a specific example where you can see how harmful
it really is? How can mutation ever have no effect on
one's DNA whatsoever?
permalink Posted Oct 3, 2008 10:39 pm - [delete]
lfarbstein adaptation
An adaptation is a characteristic of an organism that
has been favored by natural selection and increases the
fitness of its possessor.The concept is central to
biology, particularly in evolutionary biology. The
Oxford Dictionary of Science defines adaptation as "Any
change in the structure or functioning of an organism
that makes it better suited to its environment."
Adaptation is the change in living organisms that allow
them to live successfully in an environment.
Adaptations enable living organisms to cope with
environmental stresses and pressures. Adaptations can
be structural, behavioral or physiological. Structural
adaptations are special body parts of an organism that
help it to survive in its natural habitat (e.g., skin
colour, shape, body covering). Behavioural adaptations
are special ways a particular organism behaves to
survive in its natural habitat (e.g., phototropism).
Physiological adaptations are systems present in an
organism that allow it to perform certain biochemical
reactions (e.g., making venom, secreting slime,
homeostasis).
permalink Posted Sep 28, 2008 7:42 pm - [delete]
kaneblake
kaneblake re: adaptation
i agree did u know that we experance adaptation everday
i tink that adapation is just a fancy word for problem
solving. when you adapt to someone's habits or a
situation you try to figure out what you can do to win
or make a situation better. for example:the undertaker
(a wwe superstar) has been in quite a few situation
when his oppenent was bigger or stronger then he was
and everytime that happened he came out on top like
when he fought The Great Khlai a seven foot four inch
tall monster compared to the undertaker's six foot
eleven inch height all the undertaker did was take out
the great khali legs so he would be his height and then
he tried to put him in the triangle choke (a submission
move) but it didn't work because he was to big so he
adapted and made a new and more deadly chokehold and
won the match
permalink Posted Sep 30, 2008 7:42 pm - [delete]