It will be Control. Part of the experiment used to show that the results of an experiment is really due to the conditions being tested.
I'm not too sure which one of these two but its either A or C
It is called the lines terminal is or pelvic brim
He proposed that over a large period of time natural selection could lead to change in order to better adapt a species to their changing environment
The density of salt water is greater than the density of fresh water
