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Rahern1234
Does anybody need Help??

Send in any questions you have and I will try and help you out!


23 Comments
RoseRo94
RoseRo94
how does an alveoli maximise gas exchange
avambriscoe
It has thin walls and a load of capillaries all over it to make it easier for gases to exchange
Danielcremin
what do u study
Pacify
Pacify
any topics i should know really well for the exam, trying to get a distinction
Iofa
Iofa
earth and space is one that is for sure coming up.
missshush
missshush
did u study jane eyre? any key moments. could u give me any story ideas for the creative writing as well?
Study56738
what is the experiment to show that living organisms respire?
Liopad
Liopad
what are the diagrams for creating carbon dioxide and oxygen
lovwar
lovwar
@misshush wrong thread ahah
Elhassadi04
how does the universe demonstrate properties of the big bang theory
Pacify
Pacify
do you seriously think they are gonna ask us to demonstrate the properiies of the big bang theory?
AliceAlannah
What experiments do you need to know?
Elhassadi04
well it was on my mock and i had no clue about
Rahern1234
DONT BOTHER LEARNING THE BIG BANG THEORY
sarahmcm
sarahmcm
@Elhassasdi04 - Cosmic background radiation and the fact that the universe is constantly expanding suggests that it all started at one point (with the Big Bang). I think this answers your question on how the Universe demonstrates properties of the Big Bang Theory. By properties do they mean evidence?
zmooney11
zmooney11
germinating peas is the experiment to hsow that organims respire
Alanac
Alanac
does anyone know where to get good notes on earth and space????????
seankelly16
Any tips as to what might come up?
Rainbow1
Rainbow1
To show that respiring animals produce carbon dioxide. Method  Set up two test tubes with limewater in each. Put rubber stoppers over the tubes and metal gauzes inside – one test tube should have woodlice over the metal gauze. Result  The limewater in tube with woodlice turns milky. There is no change in limewater in other tube. Conclusion  Limewater turns milky, as carbon dioxide has passed into it. This only happened in tube with woodlice – woodlice producing carbon dioxide.
Rainbow1
Rainbow1
zmooney11 - The germinating peas experiment is to show that that respiring organisms produce heat energy
Football512
guys here is the test for carbon dioxide and oxygen if needed carbon dioxide limewater turns milky white and oxygen if wooden splint re lights
Football512
guys here is the test for carbon dioxide and oxygen if needed carbon dioxide limewater turns milky white and oxygen if wooden splint re lights
Scullier
Scullier
why did my dad leave? (biological p.o.v)
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