Which Statement About How Breathing Is Regulated Is True

question 11

Multiple Choice

Which statement about how breathing is regulated is true?

• A) Mammals are quite sensitive to decreasing levels of O₂ in their arterial blood.
• B) The brainstem posterior to the medulla regulates breathing.
• C) Fishes are very sensitive to decreasing levels of O₂ in their arterial blood.
• D) In mammals, a small increase in arterial PCO₂ prompts no change in ventilation.
• E) Severing the spinal cord does not stop breathing in mammals.

---

Definitions:

Misogyny

The hatred of or disdain for women.

Heteronormativity

The belief that heterosexuality, predicated on the gender binary, is the norm or default sexual orientation.

Androgyny

The combination of masculine and feminine characteristics into an ambiguous form, often in terms of appearance or behavior.

Gender Variation

Refers to the diversity in how individuals experience, express, or identify their gender, which may not conform to societal norms.