Which of the following statements is true about Parkinson's disease?

A nucleus can also be unstable If it contains too many neutrons. What causes this instability? (A) Hiavigg too many neutrons causes an excess of repuision. (B) Neutrons eventually overfil the atomic orbitals and have nowhere eise to go. (C) The artractions between neutrons constrict the nucleus too tightly. (D) Neutrons are naturally unstable, inevitably leading to decay on their own.

A nucleus is unstable if it contains too many protons. What causes this instability? (A) Having too many protons causes an excess of repulsion. (B) Protons eventually overfill the atomic orbitals and have nowhere else to go. (C) The attractions between protons constrict the nucleus too tightly. (D) Protons are naturally unstable, inevitably leading to decay on their own.

Question 16 (2 points) \( \begin{array}{l}\text { Listen } \\ \text { Hepatitis viruses B and C together cause most of the world's cases of liver cancer. } \\ \text { True } \\ \text { False } \\ \text { Question } 17 \text { ( } 10 \text { points) }\end{array} \).

When a patient who has been previously diagnosed with cancer no longer has symptoms or other evidence of that cancer, the patient is said to A) have metastasis. B) have a benign tumor. C) be in an immune state. D) be in remission.

Question 26 (2 points) \( \begin{array}{l}\text { Listen } \\ \text { A diet high in fiber can decrease a person's risk of cancer and heart disease. } \\ \text { True } \\ \text { False }\end{array} \)