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In my text book it says the main reason is that it mainly re-enters the capillaries by the loss of hydro static pressure within them, so by the time the blood gets to the venous end of the capillary the hydrostatic pressure is less within the capillary than outside them in the tissue fluid, so the tissue fluid is forced back into the blood in the capillary. However when i look at mark schemes it says that it mainly re-enters by osmosis? How does it move in by osmosis? ( i know that the remaining moves back into the bloodstream via the lymphatic system)
I understand that an allele is the alternate version of the same gene but do two of the same alleles make up a gene? Do genes contain two alleles each?
I am studying Biology Unit 2: The Components of life with the Edexcel board using the new specification. As it is a new specification (2011) there is no past papers available so I am in search of some revision notes that could help me.
I need help on this for my ISA..so please any accurate information will be beneficial and can I have the website or books for where you received your knowledge from. Including authors and links. Thank You .:)
i just want to improve my maths, english and science skills because i have got my gcse's coming up soon!!!