Please help me out if u do, thank u:)

According to the cladogram, which organisms have roundworms as a common ancestor?

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.

Which of these structures are found in both plant ans animal cells?