Multiple choice

[PantherZ]

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Pretty sure the answer to 4 is A and 9 is C.

If you want to really analyse this crap, none of the answers are absolutely correct as the majority of CO2 diffuses into the RBC in the blood (I do not mean attached to haemoglobin as haemoglobin doesn't reside inside the RBCs). Only a minority is carried as bicarbonate.

Also, like Survivor stated, they are looking for the best answer. The best answer constitutes the incorporation of both concepts, quarantine + vaccination, and the only one to do this is A.

Since this is HSC Biology, I wouldn't overthink it, and would go with the answers above.

[Randomboy]

Originally Posted by PantherZ

Pretty sure the answer to 4 is A and 9 is C.

If you want to really analyse this crap, none of the answers are absolutely correct as the majority of CO2 diffuses into the RBC in the blood (I do not mean attached to haemoglobin as haemoglobin doesn't reside inside the RBCs). Only a minority is carried as bicarbonate.

Also, like Survivor stated, they are looking for the best answer. The best answer constitutes the incorporation of both concepts, quarantine + vaccination, and the only one to do this is A.

Since this is HSC Biology, I wouldn't overthink it, and would go with the answers above.

I agree, we must answer the question within the context of "HSC Biology Syllabus" The correct method would be A) as that correlates to two areas we look at in a search for better health (Isolation and Vaccination).

For the sake of argument though; by moving the infected animals out of the already lost enclosure to another, your both infecting a new zone, and allowing for the potential of infecting the healthy animals in transmission.

[sam5]

Originally Posted by Randomboy

I agree, we must answer the question within the context of "HSC Biology Syllabus" The correct method would be A) as that correlates to two areas we look at in a search for better health (Isolation and Vaccination).

For the sake of argument though; by moving the infected animals out of the already lost enclosure to another, your both infecting a new zone, and allowing for the potential of infecting the healthy animals in transmission.

yep good. Weve come to a conclusion about that one.

what did u have for 11?

[Randomboy]

I personally put D however im not 100% about that one.

Has anyone found out what the syllabus teaches in relation to stomates in hotter/dry environments?

Text book anyone?

[sam5]

Originally Posted by Randomboy

I personally put D however im not 100% about that one.

Has anyone found out what the syllabus teaches in relation to stomates in hotter/dry environments?

Text book anyone?

ive read things about whether the stomates are closed at night or not. MOST plants close them up at night (suggesting B) but other sources have said that light isnt the only factor determining when stomates open and close, and i would have thought that the stomates might stay open at night to respire (take in O2) because they have little opportunity to do this during the day (unlike plants in wetter environments).

The textbooks dont say much.

[njlalala]

The answer was when the stomates are open at night and dawn as this is a mechanism for saving water and preventing eveaporation etc or something like that, if plants in a hot dry condition opened during the middle of the day they'd loose too much water.

[sam5]

Originally Posted by njlalala

The answer was when the stomates are open at night and dawn as this is a mechanism for saving water and preventing eveaporation etc or something like that, if plants in a hot dry condition opened during the middle of the day they'd loose too much water.

did u sit the bio exam?

It was B or D.

B had stomates closed at midnight and noon, but open at dawn and dusk.

D had stomates closed at noon, open at midnight, and half open at dawn and dusk.

[christoffpow]

OP here

Originally Posted by Prashant Sallan

So in conclusion.. what are the final multiple choice answers?

In conclusion, the ones originally posted. Nothing has changed. I'm still leaning towards 11C though..

[Survivor39]

Originally Posted by christoffpow

In conclusion, the ones originally posted. Nothing has changed. I'm still leaning towards 11C though..

I'd like to see the whole question (Q11) including the graph if anyone has it so I can have a go in confirming it.

[christoffpow]

Originally Posted by Survivor39

I'd like to see the whole question (Q11) including the graph if anyone has it so I can have a go in confirming it.

Sorry, 11D not 11C*

I don't have the graph I'm overseas at the moment.. sorry.