Which Arrow Shows Nitrogen Fixation

question 23

Multiple Choice

Which arrow shows nitrogen fixation?

• A) arrow A
• B) arrow B
• C) arrow C
• D) arrow D

---

Definitions:

Superior Phrenic Artery

An artery that supplies blood to the superior part of the diaphragm.

Subclavian Artery

A major artery that supplies blood to the upper limbs and parts of the brain and thorax.

Internal Carotid Artery

An essential artery responsible for providing blood to the brain, eyes, and various regions of the head.

External Iliac Artery

A major artery that supplies blood to the lower limbs, branching off from the common iliac artery.