I don’t speak Espanol but I think that u mean 2 digestão
Constants never change.
Controls typically don't change or they are done by standard means
(like in an experiment where you water plants with sodas, the plant you use water with is the control)
Dependent variables are the outcome of the experiment. This is the result of changing something.
Independent variables are what you are testing. A independent variable is something that is intentionally altered.
easy way to remember it is that dependent variables depend on what other variables are. so you cant change a dependent variable, but you can change the other variables.
I believe the answer is D.
The purpose of the large intestine is to absorb water and salts from the material that has not been digested as food, and get rid of any waste products left over.
Hope this helps! Sorry if incorrect
2. White Dwarf Stage
The sun will run out of nuclear fuel and slowly cool down over many billions of years.