How do phylogenetic trees help scientists understand evolutionary relationships?

Which of the following is an example of an animal?

Which of the following groups are most closely related, based on recent phylogenetic evidence?

What is the difference between a monophyletic and a paraphyletic group?

Which of the following characteristics is shared by both fungi and animals, but not by plants?

If you have $100,000 in a 401(k) growing 10% per year on average, how much will this be worth in 35 years when you retire approximately?

The pharmacological management of atrial fibrillation involves which of the following:

BB is a 55 yo male who presents to the clinic with complaints of failure to maintain an erection. He is evaluated for cardiovascular risk and found to be in general good health. He is prescribed Tadalafil (Cialis) for treatment. What is the mechanism of action of tadalafil? Decreasing the degradation of cyclic GMP via phosphodiesterase inhibition, which increases the relaxation of cavernosal smooth muscle and cavernosal arterial blood flow is the mechanism of action for which of the following treatments for erectile dysfunction: 

A 28-year-old female presents to the clinic with complaints of feeling on top of the world for the past week. She reports sleeping only 2-3 hours each night but feels fully rested. Her husband reports that she has been spending excessively and has been more talkative than usual. Her past medical history is notable for episodes of severe depression. On examination, her mood is elevated, and speech is rapid with flight of ideas. Her thought process is goaldirected, and no hallucinations or delusions are noted. Which of the following is the most appropriate medication for this patient?

A 24 year old male has an eight-month history of loose thought associations, social withdrawal, auditory hallucinations, and deterioration in his personal appearance and hygiene. Upon examination, he is noted to have a flat affect, perceptual distortions, and behaves like he is detached from his own actions. If chose for treatment, which of the following medications would require weekly WBC monitoring for the first six months?