Digestive organs.
Digestive organs include the esophagus, stomach, large intestine, small intestine, pancreas, liver, gall bladder, and cloaca.
Hope this helped!
If by inadequate you mean not meeting the necessary levels (too low), then it is "hypo"
It's then independent variable.
This is the case because Eleanor is making these temperature changes.
Extra info.
The dependen variable would then be the result of hatching. This is the case because it depends on the different temperature to see what the effect of temperature change is affecting the time of hatching