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what are some examples of good mutations??

xylem - transpiration stream consisting of cohesion and adhesion phloem - translocation. source to sink theory

i drew a picture with an explanation. i fluked this one cos i wasnt 100% sure i was doing the right process.

what are you implying? did we do something wrong?

can someone explain DNA replication. Im hoping i got a few marks for this.

I did that, but i said that you needed to identify the gas beforehand, so you could use an appropriate method of testing for its presence and gave the example of carbon dioxide - would use calcium carbonate. Not sure if this is wat they wanted tho

You know the last question for section II? Enzyme 1 and 2 - design an experiment. What did everyone put for this question? I thought it was really weird, I was a bit unsure of what they wanted. Hopefully i get majority of marks.

I can get to this point, but always lose it when finding k (it should be the easiest part). i cant pick what i am doing wrong. can someone solve this for me with the steps so i can see where im going wrong.

Thanks alot

A city doubles its population in 25 years. If it is growing exponentially, when will it triple its population?

not the sympathy i was hoping for, but it kicked the nerves.

is anyone else wishing that this exam wasnt tmrw???

thanks, i get it! :)

is copper a stronger oxidant than iron? if so why?

I have been looking for May Herschell Clarkes "Nothing to Report". Does anyone have a copy?