Select all the correct answers. Which two important developments in health care took place in the period between the seventeenth century and the nineteenth century?

Medical practitioners started maintaining records.
The human papilloma virus vaccine was developed.
Women were legally allowed to practice medicine.
The smallpox vaccine was developed.
Greek physicians made major contributions.

The purity of ecstasy is always in question, why? (short answer)

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.

Which many - celled organisms are capable of causing diseases in humans