are you saying they overlap because they both contain the no 12? but if it was 11-12 and 12-18 there wouldn't be an overlap and therefore the difference between the means is greater and therefore more variation? does this mean the bigger the difference in the range of values obtained from the SD that theres more variation?
if they are both 12, that may be treated as overlap aswell
the key idea, is that if they do overlap, we say the difference maybe due to chance
What's root pressure? And can you run through magnification ; like how to convert certain units
root pressure is the pressure generated when the root absorbs water into the xylem. this applies slight pressure on the column of water, so minimally helps in pushing up the column of water.
maginification:
remember AIM Magnification = image/actual
and 1 mm = 1000 micrometres thats all you need to know
for those doing the exam, balance revision with the sleep needed, you dont want to be battered for the exam, anyone needs anymore help, just let me know
Still going over beta-glucose... should NOT be doing this at this time. But hey ho, I'm probably gonna pull an all-nighter
I know... Think I'm gonna get some sleep and wake up at 6 or I feel I may fall asleep whilst doing the exam :P have you done all the past papers? Try and get some sleep if you can
No, stupidly I haven't... Had loads of exams this summer... stupid AS resits... I actually think I'm gonna have to go and resit Year 13... well not all my A-level subjects since some of them are fine, guaranteed A's shall we say but Biology I don't think I'm gonna get any higher than a D...
Damn my procastrination <<-- sorry I've never known how to spell that word
for those doing the exam, balance revision with the sleep needed, you dont want to be battered for the exam, anyone needs anymore help, just let me know
There are still parts of the spec I need to go over, i.e. last two topics, ARGHHH!!
how do you know when to say diffusion, when to say concentration and when to say water potential when dealing with gradients and stuff? it seems to change with every question!
how do you know when to say diffusion, when to say concentration and when to say water potential when dealing with gradients and stuff? it seems to change with every question!
Concentration = ions or gases in gas exchange Gradient = concentrations of molecules or ions being transport from high to low (diffusion) or low to high (active transport). Water potential - things involving plants such as roots absorbing moisture (high to low) - osmosis.
Thank you so basically in meiosis, homologous pairs line up alongside each other but in mitosis, there are no homologous pairs, all chromosomes just line up at the equator?