A patient is taking a beta-adrenergic antagonist medication for angina pectoris and asks the nurse how the drug works to relieve the discomfort associated with this condition. Which statement by the patient after the nurse’s teaching indicates understanding of the drug’s effects?a. "It causes bronchodilation, which increases oxygen flow."b. "It helps reduce the heart’s oxygen needs."c. "It improves blood flow to the heart."d. "It increases cardiac output."

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.