I can’t see the image but CO2 is produced in the mitochondria during respiration
The mitochondria looks like this:
The answer is C since heterotroph means they don't have a way of making food
A commodity that someone would invest in would be tea, coffee, and wine. Some of the more popular items people usually think of as a commodity.
Geckos have small hair-like structures on the bottom of their feet which allow geckos to climb almost any surface in which this case, it's glass.