Answer: Lungs
Explanation: The pleura encloses each lung by a double layered serous membrane
Atom, cell, tissue, organ
What alleles do the parents have? If the parents are both Homozygous recessive the answer is 0%. If one is homozygous dominant it doesn't matter what the other one is, the answer is 100%. if the are both heterozygous the answer is 75%
