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Aldosterone is a hormone released when salt levels are low in the body. Aldosterone increases the permeablity of the tubules to sodium. Fludrocortisone is administered to people who cann not secrete aldosterone it is given orally once or twice a day and it works the same way as the hormone...

loll ok diffusion and osmosis: 1) process are too slow 2) non selective 3) Osmosis- only refers to the movement of water so nitrogenous wastes cant be removed and will build up

next qs uhmm movement of substances in xylem and phloem >.<

lolll uhmm ok the main parts are: Lungs: oxygen levels are low when blood enters and CO2 levels are high, glucose levels high in glucose Body (in general) : high in Oxygen ;low in CO2 high in glucose and low in urea Intestines: Small- low in glucose, amino acids and fats (products of...

lolll wouldnt it be crazy if someone had the bio paper with them :O

nopeee no where near ready >.< and genetics the code broken as the option its sooo urghhhh -.-

looll noo :P

and how DNA controls the production of polypeptides: it occurs in two steps : Transcription and Translation: A. transcription is the synthesis of RNA from DNA. It occurs in the nucleus. 1. The 2 strands of DNA separate 2. The free floating RNA nucleotides in pair up to their complimentary bases...

George Beadle and Edward Tatum performed experiments by using a fungus called pink bread mould, they found that this mould would thrive on a minimal medium containing nothing but minerals, sucrose and vitamin biotin. They reasoned that these substances must be converted into amino acids and that...

Thank You Everyone :)

If im aiming for a >99 atar is it better to choose legal studies or physics if im doing: 2 unit bio, 2 unit maths, 2 unit english, 2 unit chem?

our school ranking is 12th and im in yr 11 so that number is yr 11 students (not all) and yr 12 students

is a rank of 29/160 good as a bio assessment rank?

loll ok thank you (:

hey im sitting biology hsc this yr im in yr 11 but i wanted to apply for the UAC btu it needs my application number for UAC but i dnt have this yet so am i meant to be aplying this yr or next year? Thanks

thanks

yes..

hey does anyone have any tips for this essay qs: evaluate the effectiveness of the legal system in addressing the changing needs of women in Australia since 1788. My specific area in this essay is women and domestic violence

thanx :)

lol depressed isnt really the word .. just how much of a routine the hsc years of school r