XtremePapers

M
Metallic9896
Yeah ill get back to you later today
M
Metallic9896
Yeah so for paper 4 section B one a part was on comparison between nervous and hormonal systems and b part was about chemoreceptors, taste buds etc. and the other question a part was on the conditions in which stomata close and open and b part was about why is it necessary for that to occur.
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