Arteries are characterised by
Athick elastic walls, blood under high pressure, no valves
Bthin walls with valves, blood under low pressure
Cthin walls, blood flows towards the heart
Dvalves throughout, carrying deoxygenated blood only
Answer & Solution
Correct answer: A. thick elastic walls, blood under high pressure, no valves
Arteries carry blood away from the heart under high pressure, so they have thick, elastic walls and no valves (valves are in veins, where pressure is low).
Related questions
By which process do living things release the energy stored in their food?The nitrogenous waste excreted in largest amount by the human kidney isThe green pigment that captures light energy for photosynthesis isThe human heart is made up ofMost of the absorption of digested food into the blood occurs in theThe enzyme in human saliva that begins the digestion of starch isThe basic filtration unit of the human kidney is theThe exchange of gases in leaves takes place through tiny pores called