Describe the shape of a red blood cell.Multiple choice question.biconcave discsquamousalcolumnarcuboidalspherical

Which cell has the shape of a biconcave disc?Multiple choice question.lymphoblastwhite blood cellred blood cellhemocytoblast

Which of the following are characteristics of red blood cells?Multiple select question.Carry oxygenBiconcave shapeLarger than white blood cellsContain a nucleusContain hemoglobin

Select all that applyList three characteristics of erythrocytes (red blood cells).Multiple select question.They are biconcave discs.They lack mitochondria.They are large and spherical.They have a large nucleus.They are specialized for carrying oxygen.They are cell fragments.

How are red blood cells adapted to their function?They have a biconcave shapeThey contain many mitochondriaThey have a large nucleusThey have a biconvex shape2Which of these is a function of blood plasma?To carry carbon dioxide around the bodyTo defend against pathogensTo carry oxygen around the bodyTo help the blood clot at the site of a wound3Which blood vessel carries deoxygenated blood away from the heart to the lungs?AortaVena cavaCoronary arteryPulmonary artery4In which blood vessel does the left ventricle of the heart pump oxygenated blood around the body?Vena cavaPulmonary arteryPulmonary veinAorta5Which of the following is a description of a vein?Thin walls and no valvesThick walls and no valvesThick walls and contains valvesThin walls and contains valves6The human circulatory system is:A closed circulatory systemA single circulatory systemA double circulatory systemAn open circulatory system

Blood is classified as what type of tissue?Multiple choice question.connectivemuscleepithelialneural