Natural science has two key branches. One is biological science which is often called ______.

Marla has revised her will to ensure that upon her death, all of her functioning organs (corneas, liver, kidneys, heart, and so on) will be used to help transplant patients. She's told no one about her actions, and expects nothing in return

This is an example of a(n) ________ behavior. a. altruistic b. evolutionarily adaptive c. self-sacrificing d. normative

Changing the order of treatments from one participant to another in a repeated measures design involves

a. getting baseline data. b. counterbalancing. c. a static-group comparison. d. a pretest-posttest design.