Glands which make cortisol and aldosterone Y. Glands which make epinephrine and norepinephrine Z. Glands responsible for female secondary sex characteristics AA. Glands responsible for male secondary sex characteristics AB. Hormone released by posterior pituitary gland in response to contractions. Fill in the blanks.
The PhD is the highest degree you can earn, so it follows that it demands the most work. In most cases, you complete a masterâs degree before going on to a PhD. Unlike a masterâs degree, a PhD usually requires a series of comprehensive written or oral exams.
But even if you can hack the academic rigor required to get a PhD, there may be good reason not to pursue such a degree: 1. A PhD takes twice as long as a bachelor's degree to complete. The average student takes 8.2 years to slog through a PhD program and is 33 years old before earning that top diploma.