The blood enterng the right atrium is low in oxygen because it has just returned to the heart after nourishing the body with needed oxygen true or false

What angle should your knees not bend past when squatting? a. 30 degrees b. 45 degrees c. 90 degrees d. 120 degrees

How do people attempt to explain the behaviors of others?

Which of these gives the best indication that a health service is based on pseudoscience? a. the service is not controversial and is supervised by medical professionals. b. the service has been extensively researched,has a high success rate,and is expensive c. the service is inexpensive, is based on research, and has been around for a long time d. the service has not been researched and is expensive