Serine, threonine, and tyrosine are most commonly phosphorylated in eukaryotes.
Studying evolutionary relationship among organisms
Answer:
Arteries have thick walls composed of three distinct layers (tunica) Veins have thin walls but typically have wider lumen (lumen size may vary depending on specific artery or vein) Capillaries are very small and will not be easily detected under the same magnification as arteries and veins.
Explanation:
It increases..................
