What is the fourth stage of the estrous cycle where, if no pregnancy occurs a drop in hormone levels prepares the reproductive system for the estrus the first stage of the cycle? A: Diestrus
B: Estrus
C: Metestrus
D: Proestrus

Ines is in graduate school and does not want to miss any classes or fall behind on her research project. if she wants to be proactive about her wellness, what should she do?

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.

Adam has been trying to work on expressing his anger in a calm manner, rather than screaming and yelling. his doctor recommended different breathing techniques to enhance his and express himself positively