In a study comparing the genetic contribution to eating disorders, researchers found that in % of identical twin pairs both twins had bulimia nervosa, while that number was % of fraternal twin pairs. although this does not rule out the influence of environmental and sociocultural factors, it does present compelling evidence for a genetic contribution to these conditions.

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

How do ratio scale and diagrammatic scale work

When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d.higher