A Person Admits That for the Past Few Months, Once

question 129

Multiple Choice

A person admits that for the past few months, once or twice per week she has ended up consuming significant amounts of food and then vomiting afterward to prevent weight gain. Which other factor would have to be present to meet the diagnostic criteria for bulimia nervosa?

• A) History of intense dieting
• B) Signs of esophagitis and damage to the teeth
• C) Body weight that is significantly underweight
• D) Extreme concern with one's body shape and weight

---

Definitions:

Fresh Water

Water that has low concentrations of dissolved salts (salinity) and other total dissolved solids, commonly found in rivers, lakes, streams, and underground aquifers.

Inverted Ecological Pyramids

describe situations in ecosystems where higher trophic levels have greater biomass or numbers than lower levels, contrary to the typical pyramid shape.

Aquatic Ecosystems

Environments in water where organisms interact with each other and with their surrounding physical environment, including oceans, lakes, and rivers.

Nitrification

A microbial process by which ammonia is oxidized to nitrites and then nitrates, a crucial part of the nitrogen cycle in soils.