Biology; Chemistry; Physics: Post your doubts here!

[princess Anu]

when an alternating current is applied, the primary coil may also contain diodes, so Alternating current does not ALWAYS flows in secondary coil.

answer is C, right?

but then how can our appliances work without Ac supply? :s

 

[princess Anu]

In a metal wire , when electric current is passed through it , electrons are replaced by NEW electrons?
where do the NEW electrons come from? :/

 

[funky brat]

Yeah, and i don't just ''think'' C is correct, i ''know'' it is. xD

And i rarely ''Know'' stuff about Biology, but this time i do.

Lol, okay.

 

[funky brat]

In a metal wire , when electric current is passed through it , electrons are replaced by NEW electrons?
where do the NEW electrons come from? :/

They are fed in by the negative terminal.

 

[funky brat]

What years r u guys considering for chemistry mcqs? funky brat Awesome12 Dark Destination and others
*confused*

Pata nahi, everything's getting repeated. Is dafa main ne bhi Chemistry kay MCQ's karnay hain. :/

 

[funky brat]

Guys, what was the label for H? I wrote anus, is that correct?
And why is insect pollination wrong? Insect and Wind pollination and self and cross pollination are two different things. How do we know what to write about? I mean when they said flower was closed we wrote self pollination but when the flower was opened we wrote wind pollination. We should have written cross pollination instead. Anyone? :/

 

[Lilly2318]

Guys, what was the label for H? I wrote anus, is that correct?
And why is insect pollination wrong? Insect and Wind pollination and self and cross pollination are two different things. How do we know what to write about? I mean when they said flower was closed we wrote self pollination but when the flower was opened we wrote wind pollination. We should have written cross pollination instead. Anyone? :/

no its rite that b4 it was self nd then it was wind pollinated

 

[Lilly2318]

Help me in Q 9. plz

 

[funky brat]

no its rite that b4 it was self nd then it was wind pollinated

But why?

 

[Lilly2318]

But why?

in bio book if u see the flower was ischaemum muticum ( a wind pollinated flower) the details are there . it had pendulous stamens and style that projected outwards whereas in insect pollinated they r not like this. Mayb ur answre will also be considered right! its only 1 mark. i lost lots of marks

 

[Abdul Hanan]

But why?

the flower was similar to ischaemum muticum which is a wind pollinated flower when open......
it is not attractive so no insect pollination..... but in rare cases it may occur....

 

[funky brat]

the flower was similar to ischaemum muticum which is a wind pollinated flower when open......
it is not attractive so no insect pollination..... but in rare cases it may occur....

But self- pollinated is a vague answer, even when flowers are self pollinated, the pollens move from the anther to the stigma either by wind or insects.

 

[What is life]

but the flower was closed, self pollination was likely to occur..

 

[Abdul Hanan]

But self- pollinated is a vague answer, even when flowers are self pollinated, the pollens move from the anther to the stigma either by wind or insects.

when flower is closed then self-pollination
otherwise wind pollination....

 

[princess Anu]

DO we have to learn to draw 3-D structures of Allotropes
NO2 is brown and bromine is as well? then how wud we differentiate?

 

[What is life]

Let's hope we ace the biology exam, but for now can we just focus on physics and chemistry?

 

[Abdul Hanan]

guys...!
by mistake i wrote "nitrifying bacteria'" in the nodules question.... but i wrote the complete correct detail of what the nitrogen fixing bacteria does.....
i did not write "nitrogen fixing" but i wrote what do the bacteria do.......will they cross it all out or will they give me marks for the correct details.......

 

[asadalam]

Guys, what was the label for H? I wrote anus, is that correct?
And why is insect pollination wrong? Insect and Wind pollination and self and cross pollination are two different things. How do we know what to write about? I mean when they said flower was closed we wrote self pollination but when the flower was opened we wrote wind pollination. We should have written cross pollination instead. Anyone? :/

It was rectum,anus is the end part,and since it was a bit above it was rectum.I made a silly mistake though too,labelled the sperm ducts seminiferous tubes,even though i knew they were sperm ducts....

 

[asadalam]

guys...!
by mistake i wrote "nitrifying bacteria'" in the nodules question.... but i wrote the complete correct detail of what the nitrogen fixing bacteria does.....
i did not write "nitrogen fixing" but i wrote what do the bacteria do.......will they cross it all out or will they give me marks for the correct details.......

A mark will be cut at most,if its functions are correct you'll get the rest.

 

[Abdul Hanan]

A mark will be cut at most,if its functions are correct you'll get the rest.

yayy!!
what was the label for the line pointing at the tube in penis ?