What is in the cells of plants and in animals and all other eukaryotes

eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes. Eukaryotes belong to the domain Eukaryota or Eukarya, and can be single-celled or multi-cellular.

Or:

Eukaryotes are made up of eukaryotic cells. Eukaryotic cells contain a nucleus and membrane-bound organelles.

answer; //the above statement is (false);

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