plz.....its important

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:Pplz....anybody,anwer dese questions
Q1.r dese genetic traits?
1-left-handedness
2-quality of voice
3-red-green color blindedness:roll:
Q2.note d ralationship b/w d first 2 words n suggest d word in 4th place
1-cerebrum:diencephalon::cerebellum:.....................
2-receptor:sensory nerve::motor nerve:...................
3-stimulus:receptor::impulse:................
Q3-wats d function of central canal?????
Q4-a double chainof ganglia,one on each side of d nerve cord belongs 2 d spinal cord.t/f:confused:
Q5-is intestinal peristalsis a reflex action or an involuntary action? Suspect

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q1.
1. its a recessive genetic trait
2. it has to be (I am not sure)
3.color blindness is a recessive trait
4. assuming roll as rolling of tongue it is a dominant genetic trait
Q2.
1. Pons
2. effector
3. Response
Q3.
Central canal is present in the spinal cord and is a small central canal in the center of the cord which runs the entire length and is continuous with the cavities in the brain .
Q5
Its ought to be a reflex
Exclamation

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oh!thankx candy.but in q2.part 2 i think its not rite bcoz just as receptor is in sensory nerve in d same way,motor nerve cannot b 2 effector.d order is reversed.n in q3.d function of central canal is asked.not wat is central canal.n wat abt q4.well tankx ford rest answers. Very Happy

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i dont think that intestinal peristalsis is reflex

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yup intestinal peristalsis is an involuntary action..since it is not under our control..
central canal contains cerebrospinal fluid which provides protection and nourishment to the spinal cord.

well apurva..candy is right..the ans is effector..the order is not imp..wat is imp is the relationship..

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hey!!! anybody plz answer d q4 also. confused

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4) false..it belongs to the PNS: Autonomous nervous system

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Oh yes I did not see that central canals function was asked? silent

Sorry

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arre doesnt matter.thankx for other answers. Embarassed

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arre waah siya..u seem to frm UP..heh?

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arre kyun bhai,do u have any conception dat only d people frm UP say thankx.
well,jony,u r frm?????

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plz.answer dese questions 2.
q1.name a hormone which causes secretion of more urine.
q2.d secretion of ADH is inhibited by(emotion n stress,nicotine,alcohol,morphine)
q3.do u agree wid dis"all hormones r chemical signals"?yes/no.give reason Suspect

:
q4.if u stand 2 make a maidan speech bfore a large audience,ur mouth dries up n heart rate increases.wat brings abt dese changes?
q5.if 1 adrenal gland is removed,d other 1 gets enlarged 2 some extent.how do u explain dis change? confused

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Function of central canal :It is filled with cerebrospinal fluid and acts as shock proof material . It forms a medium for the exchange of food materials , waste products and respiratory gases

And yes Intestinal peristalsis is an Involuntary action

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thankx candy!!!!!but wat abt d other answers.pllllllllzzzzzzzzz....ne1 answe r d rest What a Face

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hey!!!! ne1 plz answer!!!!!!

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q1.name a hormone which causes secretion of more urine.
UNDER SECRETION OF ADH
q2.d secretion of ADH is inhibited by(emotion n stress,nicotine,alcohol,morphine)
aLL FOUR OF THEM (i consulted my teacher with this matter even i have this question in my book)

q3.do u agree wid dis"all hormones r chemical signals"?yes/no.give reason Suspect

:
YES ALL HORMONES ARE CHEMICAL SIGNALS BECAUSE THEY REGULATE THE PHYSIOLOGICAL PROCESSES BY CHEMICAL MEANS .THEY AFFECT THE ENZYME SYSTEMS OF THE BODY

q4.if
u stand 2 make a maidan speech bfore a large audience,ur mouth dries up
n heart rate increases.wat brings abt dese changes?
THIS IS BECOZ OF ADRENALINE

Organ of the body :heart
Effect of Adrenalin : beats faster,blood pressure increases ; Effect on sensation :Thumping of the heart
Biological adv. Sends more glucose and oxygen to the muscles
Organ: Breathing centre of the brain
Effect of adrenalin : faster and deeper breathing; Effects on the sensation : panting ; Biologiacal Adv. removal of more CO 2

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thankx candy for d answers but i have a doubt dat how by adrenaline mouth dries up??????:suspect:n wat abt q5.ne1 plz answer dat 2!!!!!!! affraid

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coz of oversecretion of saliva

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wel i guess it may bcz da work is maximised for the other adrenal gland.. so it swells up storing more of adrenalin in itself.. just like thyroid gland does on undersecretion of thyroxine..

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hey namit yaar dats funny! Laughing

!!!!!!ki work is maximised.n btw who told u dat thyroid gland does dis on undersecretion of thyroxine.ye selina ya candid mein hai kya??????? ya fir aur koi kitaab padhta hai tu......u urself told me ki syll. ki 11 buks ke baad 12th selina bio hai!! Suspect

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now what is the right answer???????

anybody knows it??????

I have 0 idea!!!

one imp....i hate bio...so, i am bad at it!!!

plz help ...give the answer!!!

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what candy floss wrote is correct. the secretion of adrenalin stimulates the sympathetic system of the autonomic nervous system to prepare the body during 'emergency' situations like the above mentioned q.

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Call me candy please Razz

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ok ok as_24 but wat is d answer of ques.5?????????

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hey siya.. i have an answer.. see da candid buk.. pg 10.6 simple goitreit is clearly written dat bcz of lack of iodine thyroid gland enlarges so as to absorb more of it, nd dis is caused due to hyposecretion of thyroxine.. wat say?? dis is correct... Wink