Explanation:
(a)(i) Arteries:

carry blood away from the heart.
transport oxygenated blood with the exception of pulmonary artery.

(ii) Capillaries: -

permit exchange of materials between blood and tissues. .
links the arteries and veins.

(iii) Veins: -

carry blood to the heart.
transport deoxygenated blood except pulmonary vein.

(iv) Xylem: -

transports water/dissolved mineral salts
serves as a supporting tissue/strengthening tissue.

(v) Phloem: -

transports manufactured food/auxins/plants hormones
performs strengthening supporting function.

(b) Changes in blood composition:(i) Lungs: -

oxygen is added to the blood.
carbon dioxide is removed from the blood.
water is removed from the blood.

(ii) Liver: -

urea is added to the blood.
hormonal level is reduced.
glucose level reduced.
worn out erythrocytes are removed from the blood.

(iii) Kidneys: Water, urea, some glucose; mineral salts are reduced in the blood.
(iv) Small Intestine: - simple sugars/glucose, amino acids; water; salts and vitamins are added to the blood.
(c) Cellular Components of blood: Red blood cells/erythrocytes; white blood cells/leacocytes; and platelets/ thrombocytes.