Which of the following statements about the nucleus is true? a. the nucleus usually contains a nucleolus region which is where mitochondria assembly begins. b. the nucleus is surrounded by cell membrane that lets materials in and out. c. the nucleus is the site of protein assembly. d. the nucleus stores the coded instructions for making the cell’s proteins.

answer; i believe that the correct answer is (lung);

there’s no image attached but i can if you want: )

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.