Which of the following is the highest level of organization?
a. Organelles
b. Biological molecules
c. Cell
d. Tissue

In male, gametes are formed in the_________
a. Epididymis
b. Prostate gland
c. Seminiferous tubules
d. Vas deferens

6 All of the following are similarities between unicellular organisms and multicellular organisms,
except_______
a internal complexity
b. division of labor
c. size
d. ecological relationships​