Eu- means well and Karyote- means kernel which refers to the nucleus. This means that eukaryotes will have a nucleus which is a membrane bound organelle. On the other hand prokaryote have the exact opposite meaning. This makes the answer membrane bound organelles.
Probiotics also known as good bacteria are beneficial to one's health. The answer to the question is all of the choices are correct. They also prevent the harmful bacteria to grow, helps in having low cholesterol and regulate metabolism as well.
