define

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1.quarrantine Neutral

2.negative feedback confused

3.stereoscopic vision Question

Subject: Re: define Mon Feb 02, 2009 1:45 pm

1.A period of time during which a vehicle, person, or material suspected
of carrying a contagious disease is detained at a port of entry under
enforced isolation to prevent disease from entering a country.

2.Negative feedback is a cellular process that works in a way that is
similar to the manner in which an air conditioner operates: an air
conditioner is set to a specific temperature, and the air conditioner
shuts off when the surrounding air reaches the set temperature.
Negative feedback is part of the homeostatic process through which
cells conserve energy by synthesizing products only for their immediate
needs.

3.All monkey and human can perceive depth or the relative distance of the object.this is due to simultaneous focusing of an object in both eyes and the image are overlapping giving a three dimensional effect

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negative feedback is not there in the syllabus.... Idea

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thanx a lot Very Happy

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wait a minute....i have a question based on it in my text book

but no answer

thnx for the answer

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ok i got it....its under endocrine glands....tropic hormones....feedback mechanism cheers

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r u using concise biology Question

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hey please explain feedback mechanism pirat

...my maam told me abt it but it went over my head.. lol!

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in concise biology,it is given like this:
commands like saying"enough,slowdown" or "too-little,speed up" is the feedback mechanism.It's related to controlof hormonal secretions.But this is not enough 4 exam.

So someone plsssss........... help silent

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ambili:

yeah i'm using Concise Biology...n i dont like this book!! It has more information which is not htere in the syllabus, than what is required!! i have Together with too!

you read the whole thing under the Hormonal control, you'll understand...

FEEDBACK MECHANISM:

Pituitory gland secretes the tropic hormones to regulate the hormonal secretions of other endocrine glands. For example, when it secretes TSH which makes thyroid to secrete thyroxine, pituitory gets a signal from thyroid to stop secreting TSH or to secrete more TSH. This signal is called feedback mechanism. It may be positive feedback or negative.

Negative feedback is the signals such as enough, or slow down, which inhibit the secretion of the glands.

Hope this went straight to your cerebrum! confused

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ya...Anu....... Very Happy

anyway thanx a loti'm using only one text book which is prescribed by my school n that is concise biology Smile

Plsssssss....if anyone get more information,post it Crying or Very sad

those who r using concise biology pls.....these r the quest given in the samplr paper at the back of the text book Exclamation

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our school has prescribed anita prasad..n that is gud too Very Happy

..well..thanxx a lot for the feedback mechanism...it really went right thru my corpus callosum lol!

Subject: Re: define Wed Feb 04, 2009 2:55 pm

Our teacher gave the definition of
Stereotopic vision-
Stereotopic vision is the ability to perceive distance and depth due to the simultaneous focusing of object in both eyes.

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thanxx boulve Cool

..your definiton is much better and to the point cheers

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thaaanx 4rm me too... Very Happy

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feedback mechanism is given in the scope..so its there..n the answers given are enough..cuz bio papers dont have long answers...n once uve understood it..u can make up any answer

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Negative feedback is part of the homeostatic process
offcourse iam not sure
any way
Stereoscopic vision:
when our eyes focusus an image two overlapping image is perceived and our brain perceives a three dimensional figure, which is very clear,this image is called srereoscopic vision

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the icse definition is" ability of human eye to perceive the relative depth or distance of an object by the eye on the brain giving a 3d effect". learn the definitions which i give by heart. our teacher says that the board is very funny. they give funny, grammatically incorrect defs but if u don't write the same, they cut ur marks