Question 2
D) Carbohydrates
The cell membrane that helps to control what enters and leaves a cell is the outer boundary of the cytoplasm
C. punctuated equilibrium. Scientists believe in two evolutionary theories: gradualism and punctuated equilibrium. If punctuated equilibrium suggests species can rapidly evolve into a new species, gradualism suggests that these changes (selection and variation) happen more gradually.
America, Russia or China.
Probably America though.
I'm not positive, but I'm pretty sure it's the nucleus.
I know that they're present in eukaryotic cells and not prokaryotic cells
