Question

what does this mean (Biology homework)

Answer 1

 Identify the independent, dependent, and controlled variables in your experiment

Answer 2

Identify the variables the asked for, do you know what these variables are?

Answer 3

no i'm doing a lab and i don't know what that means

Answer 4

i don't know what the variables mean

Answer 5

@aaronq

Answer 6

independent = what you are actively changing

dependent = what changes as a result of changes in the dependent variable

control = system held at "normal" conditions to make sure nothing went wrong

Answer 7

btw, sorry i took long to respond, i havent been getting notifications for a few days, the site is screwy.

Answer 8

No it's fine but thank you for the explanation i feel like i understand it more but if i need more help can i ask you? @aaronq

Answer 9

@shinebrightlikeadimon

So lets say you are conducting a experiment and want to know what kind of house hold materials works great at inhibiting (stopping) bacteria growth. so for this experiment you will be using 1. Apple Juice 2. Coconut oil 3. Nothing you will be using a dish and separate it into three groups and then spread a random bacteria over the area and observe which one inhibits the most bacteria.

So your independent variables are Apple Juice and Coconut oil, and the dependent variable is the amount of bacteria that grew on these two materials.

Now as far as the "nothing" goes, you would have a section in the dish that has nothing on it, so reasonably it should have bacteria everywhere, because you have nothing else there to test it with. And the reason why they have the control is because we want to know if the experiment wasn't flawed and that there are no mistakes, and that bacteria should have grown in that place.

Answer 10

@shinebrightlikeadimon sure thing !

Answer 11

Thank you! @aaronq and @alphadxg

Answer 12

no problem :)