Hi!
The answer is B. chloroplast because prokaryotic cells don't have contractile vacuoles, DNA, or a nucleus.
Hope this helps! :))<span />
A) 5
Half-life is the time it will take for a quantity to reduce to half its initial value. In this case, uranium will undergo radioactive decay, and after 700 mil years, 5 of the 10 uranium atoms will have decayed.
that will be temperature cause the mass will either have to increase or decrease
