A is the correct answer to this
Nucleus- The nucleus is the control center of the cell. It is the largest organelle in thecell<span> and it contains the DNA of the </span>cell<span>. DNA (Deoxyribonucleic Acid) contains all the information for </span>cells<span> to live, perform their functions and reproduce. </span>Inside<span> the nucleus is another organelle called the nucleolus.</span>
Answer:
endocrine corrects the level of specific hormones in the body