Answer: I think it's herbivore
Explanation:
They make up everything needed to create DNA, although im not very sure, i think the answer your looking for is DNA.
"The relationship between the amount of energy reaching an object (or portion of it) and the amount leaving it.
A good example of this is our earth receiving energy from the sun, and giving off energy into the near future." (From Wiktionary)
:)
The temperature of the blocks is the dependent variable because it depends on the color of each block. (The black would probably be the hottest)
When you put the letter e under a microscope and look through it, it appears upside down. Hope this helped! :)