Dr. Asfour is telling his participants before he begins the experiment that their participation is completely voluntary and that they can stop taking part at any time. Dr. Asfour is:
a, providing peer review.
b. debriefing his participants.
c. obtaining informed consent.
d. performing random assignment.

Nucleic acid certain protein cell membranes certain carbohydrates

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d

What material did the moon come from?