Biologymedium · Past Paper
Which blood vessel has the thinnest walls to allow for gas exchange?
AArteries
BVeins
CCapillaries
DArterioles
✓ Correct Answer: C — Capillaries
Capillaries are tiny, thin-walled vessels where the exchange of oxygen, nutrients, and waste occurs.
Share this question
More from Biology
- Which of the following is the 'climax community' in a typical forest succession?
- The scientific name for the mustard plant, a common dicot in Nepal, is:
- Which organelle is responsible for cellular respiration in plants?
- What is the function of 'Guard cells' in a leaf?
- Which of the following is a monocotyledonous plant?