Biology; Chemistry; Physics: Post your doubts here!

[Spidey21]

is there any topic about transistor, capacitor and a/bistable circuit?

http://www.xtremepapers.com/community/threads/physics-atp-revisionguide.15417/
check this out..there might something there...

 

[malay]

http://www.mediafire.com/?drn1ek6ax57zb go here

gud job dere..tanxx a bunch!

 

[falcon678]

can some one explain the effect of lack of magnesium n nitrogn on plants...????

 

[aj shahzad]

capacitor time delay points plzz !!

 

[Spidey21]

can some one explain the effect of lack of magnesium n nitrogn on plants...????

Nitrogen is a constituent of amino acids, proteins, coenzymes, nucleic acids and chlorophyll. Nitrogen has a great affect on plant growth and a deficiency or excess markedly affects plant growth and fruit yield.

Magnesium is an essential constituent of chlorophyll and is required for activation of many enzymes involved in the energy transfer processes. A deficiency of magnesium will seriously affect plant growth and development as photosynthesis is directly affected.

 

[Spidey21]

capacitor time delay points plzz !!

sorry?? could not understand your question...
rephrase!!

 

[Rimsa]

can some one explain the effect of lack of magnesium n nitrogn on plants...????

Mg helps in chrolophyll synthesis. yellow leaves in case of deficency
nitrogen essential for protein, protoplasm, nucleic acid and enzyme synthesis. deficiency causes pale-yellow leaves and eventual death





whats continous and discontinous variation?

 

[Amber]

Mg helps in chrolophyll synthesis. yellow leaves in case of deficency
nitrogen essential for protein, protoplasm, nucleic acid and enzyme synthesis. deficiency causes pale-yellow leaves and eventual death





whats continous and discontinous variation?

Continuous Variation concerns traits with phenotypes that range form one extreme to another
Eg: skin colour, intelligence, height
these are affected by the environment and are brought about by the the combined effect of many genes

Discontinuous Variation concerns traits which show limited variation in their phenotypes which are easily distinguishabe
Eg: Ear lobes (either attached or free), tongue roll (either you can or cant), blood group (either A, B, AB or O)
these are not affected by the environment and are controlled by only one or few genes

Hope this helps!!

 

[malay]

Mg helps in chrolophyll synthesis. yellow leaves in case of deficency
nitrogen essential for protein, protoplasm, nucleic acid and enzyme synthesis. deficiency causes pale-yellow leaves and eventual death





whats continous and discontinous variation?

can some one explain the effect of lack of magnesium n nitrogn on plants...????

1-discontinous variations: they r variations which show clear cut phenotypes or a few distinct features eg. human bloodgroup(A,B,O,AB) or the earlobes(they r either attached or detached). they r not affected by the changes in environment.
2-continous variations: these show a wide range of phenotypes from one extreme to the other eg. height,eye or skin colour etc.n are affected by the changes in environment like too much exposure to sun may lead to dark skin.

 

[Rimsa]

Continuous Variation concerns traits with phenotypes that range form one extreme to another
Eg: skin colour, intelligence, height
these are affected by the environment and are brought about by the the combined effect of many genes

Discontinuous Variation concerns traits which show limited variation in their phenotypes which are easily distinguishabe
Eg: Ear lobes (either attached or free), tongue roll (either you can or cant), blood group (either A, B, AB or O)
these are not affected by the environment and are controlled by only one or few genes

Hope this helps!!

1-discontinous variations: they r variations which show clear cut phenotypes or a few distinct features eg. human bloodgroup(A,B,O,AB) or the earlobes(they r either attached or detached). they r not affected by the changes in environment.
2-continous variations: these show a wide range of phenotypes from one extreme to the other eg. height,eye or skin colour etc.n are affected by the changes in environment like too much exposure to sun may lead to dark skin.

thanks

 

[malay]

got a question..which one of the extensor or flexor muscles is bicep or tricep? make it clear!

 

[Amber]

got a question..which one of the extensor or flexor muscles is bicep or tricep? make it clear!

A muscle is a flexor if the connected bones are brought closer as it contracts. biceps is a flexor
A muscle is an extensor if the connected bones are moved away from each other as it contracts. triceps is an extensor

​

 

[falcon678]

Nitrogen is a constituent of amino acids, proteins, coenzymes, nucleic acids and chlorophyll. Nitrogen has a great affect on plant growth and a deficiency or excess markedly affects plant growth and fruit yield.

Magnesium is an essential constituent of chlorophyll and is required for activation of many enzymes involved in the energy transfer processes. A deficiency of magnesium will seriously affect plant growth and development as photosynthesis is directly affected.

Mg helps in chrolophyll synthesis. yellow leaves in case of deficency
nitrogen essential for protein, protoplasm, nucleic acid and enzyme synthesis. deficiency causes pale-yellow leaves and eventual death

wat will be their visual effectz...??

 

[malay]

wat will be their visual effectz...??

lack of magnesium: yellow leaves
lack of nitrogen: stunt growth
can' t be more precised

 

[Amber]

wat will be their visual effectz...??

deficiency of Mg will lead to small, yellow leaves
deficiency of N will lead to poor/stunted growth, small and pale green leaves. the plant will eventually wither and die

 

[Spidey21]

wat will be their visual effectz...??

are your questions answered now??

 

[malay]

A muscle is a flexor if the connected bones are brought closer as it contracts. biceps is a flexor
A muscle is an extensor if the connected bones are moved away from each other as it contracts. triceps is an extensor

​

Read more: ​

dats hard to remember..but i got it so thnxx alot

 

[Spidey21]

A muscle is a flexor if the connected bones are brought closer as it contracts. biceps is a flexor
A muscle is an extensor if the connected bones are moved away from each other as it contracts. triceps is an extensor

​

Read more: ​

theres a read more option at the end.

 

[Amber]

theres a read more option at the end.

srry. mistake
i removed it

 

[Spidey21]

srry. mistake
i removed it

LOL...jk...it does not matter you still are helping ppl...thats what matters..