Question

urgent need help
An experiment is set up to test whether a particular insect prefer a dark or a bright environment. A chamber with a gradient in light intensity from one end (dark) to the other (bright) has been made. The experimental hypothesis is:
“There will be a large difference between the number of insect in a dark side and the number in a bright side of the chamber.”
Which one could be the three confounding variables?

A - Varying humidity across the chamber
B - The orientation of the chamber
C - The age of the insects
D - The non-reflective material from which the chamber is made
E - The type of light source used
F - Varying temperature across the chamber

I was thinking A, E and F but there is something wrong even a,b,c is wrong
Any help would be appreciated. Thanks

Answer 1

we did this experiment with pill bugs and from our research we found the more humid, damp or darker the environment the insects were exposed to, the more bugs migrated to. Also the age of the insects wouldn't matter. I'm not sure if that was any help.

Answer 2

did u consider the effect of intensity of light on the insect and its growing pattern?
the light may b affecting some of its physiological functioning...

its just a hunch...try it

Answer 3

thanks