Introduction to Marine Biology 4th Edition by George Karleskint,Richard Turner,James Small

تمرين 21

Burrowing organisms would more likely be found where
a. sediments are predominantly gravel
b. the sediments are sand, and the water currents are fast
c. the sediments are silt, and the water currents are slow
d. the sediments are silt, and the water currents are fast
e. landslides frequently disrupt the bottom