A ratio used on a scale map is called A fractional scale
Answer: Capillaries are tiny branched blood vessels that joins the arteries to the veins
Explanation:
Capillaries are found in the junctions between arteries and veins in the tissues.
They have the following functions:
- They have tiny walls and are tiny enough to penetrate to all parts of the body
- The thin walls help them diffuse oxygen, nutrients and waste products between cells and the blood.
About 160 years. After Charles Darwin came out with his theory people have been debating it.
