Define pure substance take my hands now

u all are the cause of my euphoria

aigooo they are literally the cause of my serendipity and euphoria

when an army says I love u to bts

it don't always mean

that I want to marry bts

instead

it means

thank u for supporting us at pur tough times
teaching us how to love ourself
always being there for us

and so on

#armyforever
#armytilldeath
sarangeyo Bangtan Sonyeondan
​​

a pure substance is a sample of matter with both definite and constant composition and distinct chemical properties.

dude stop

go outside please

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!