Will give brainlist fast which of the following is a characteristic of scientific investigation? it is based on opinion. it is replicable. it is subjective. it is biased.

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

Which of the following describes a bathypelagic zone

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down