Year 12s: what will be the first way you research your future options? >>

OCR BIOLOGY GATEWAY B 25TH MAY 2016 B1 B2 B3 Exam

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Reply 160

leopard923

Original post by Naomi265

I'm doing an unofficial markscheme will link when done :smile:

Thank you

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Reply 161

livsney

Did anyone else really mess up on the timings? I ended up having to answer the last 2 sides in the last minute! I got A* in the last mock, but I hate how just depending on what the topics are, your entire biology grade could change by a lot ):

Reply 162

megmkc

Original post by Thunder_Girl

I got 50% for the first one, 0% for the second :s

I also got 5%

I got 50% for both

Reply 163

madriligo

I did it today and it was fine. I hope you guys all found it okay too. It did seem really quite easy.

Reply 164

emperorzurg

Original post by Naomi265

I'm doing an unofficial markscheme will link when done :smile:

Woop! Thanks

Reply 165

ellamoon_22

PLACEBO SIX MARK

-blind trial
-placebo inactive pill(extra info)
-keep it Fair test/ experiment
-eliminates pscycological factors
-make sure drugs work and how it will affect humans
-given nicotine low mean reaction time on graph so quicker response by body against disease?
-given nicotine and told placebo bigger reaction time longer response to recover?

(edited 7 years ago)

Reply 166

notarealname2000

What did everyone got for that extra procedure question and the exponential growth?

Reply 167

livsney

I don't know my left from my right so that heart question sucked!

Reply 168

megmkc

Original post by notarealname2000

What did everyone got for that extra procedure question and the exponential growth?

I got 2000-2004 but I don't think that I got it right

Reply 169

JoeR12345

What points did people make about the aspen trees? Advantages and disadvantages?? Could only think of disease would kill them all and change in environment may kill them all?

Reply 170

Zoroarrkk

Original post by JoeR12345

What points did people make about the aspen trees? Advantages and disadvantages?? Could only think of disease would kill them all and change in environment may kill them all?

I couldn't think of advantages either, but I put those disadvantages. I think i said some crap like they can support each other in structure or something.

Reply 171

oliviamarie16

Original post by JoeR12345

What points did people make about the aspen trees? Advantages and disadvantages?? Could only think of disease would kill them all and change in environment may kill them all?

ahhh that's what i put aswell! :smile:

Reply 172

JoeR12345

Original post by Zoroarrkk

I couldn't think of advantages either, but I put those disadvantages. I think i said some crap like they can support each other in structure or something.

I made some stupid thing up about they could easily replace the trees if we were use them to extract materials?

Reply 173

fatimama

Original post by notarealname2000

What did everyone got for that extra procedure question and the exponential growth?

I circled the second option i believe. I think it was 1940-1980 or something similar. I hated that quite a bit of that paper was maths-based. Seemed a bit unfair.

(edited 7 years ago)

Reply 174

livsney

Original post by notarealname2000

What did everyone got for that extra procedure question and the exponential growth?

1940-1980

Reply 175

livsney

How did you work out the gradient? I tried to do pythagoras..

Reply 176

ellamoon_22

ASPEN TREES SIX MARK

ADVANTAGES:

supported structure
One water source?
Offspring share same genetic info as parent tree
Loads of trees which may have been hard to grow by seeds

DISADVANTAGES

sickness
Reduction of genetic variation (I said gene pool?)
Can be destroyed at roots so all die?
Nutrients from water reduces as it goes along cause shared root system?