Which of the following are examples of tissues?
a. heart
b. bone
c. cornea
d. liver
e. veins/arteries
f. intestine

All.

In biology, tissues are those natural biological materials constituted by a complex and organized set of cells, of one or several types, regularly distributed with a coordinated physiological behavior and a common embryonic origin. Histology is the science that studies organic tissues.

A. heart  (cardiac muscle tissue)

B. bone  (bone tissue)

C. cornea  (ocular tissue)

D. liver  (liver tissue)

E. veins/arteries  (veins/arteries tissue)

F. intestine (intestinal tissue)