What Is the Cause of the Highlighted Zone with Dissolved

question 18

Multiple Choice

What is the cause of the highlighted zone with dissolved oxygen less than 2.0 mg/l?

• A) high carbon and nitrogen concentrations
• B) high iron concentrations
• C) low oxygen concentrations
• D) high phosphorus concentrations
• E) the Deepwater Horizon oil spill

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Definitions:

Oophorotomy

A surgical incision into an ovary.

Hysterosalpingography

A radiographic procedure to examine the uterus and fallopian tubes using a contrast medium to assess their shape and patency.

Laparoscopy

A minimally invasive surgical procedure that uses a laparoscope to view and operate on the organs inside the abdomen or pelvic area.

Culdoscopy

A diagnostic procedure that examines the female pelvic organs by inserting an endoscope through the vaginal wall.