Undergo differentiation
become stem cells
turn on all of the genes found in the nucleus
some cells can undergo cell division
A 'red' apple does not emit red light. Rather, it simply absorbs all the frequencies of visible light shining on it EXCEPT for a group of frequencies that is perceived as red, which are REFLECTED. An apple looks red to us because it REFLECTS infrared waves.
I think the answer is oxygen, but not 100% sure
B. They are determined by I, AB, A, or B
