In , Dissolved Substances Slowly Spread Out from Regions of High

Q4: Organisms that thrive in harsh, high temperature

Q5: Living organisms are , which differentiates them

Q6: Nitrogen and phosphorous can be depleted by

Q7: The aphotic zone is the upper layer

Q8: Marine organisms are limited in terms of

Q10: Though it is difficult to generalize for

Q11: Scientists can observe primary productivity in the

Q12: Describe energy flow through a generalized marine

Q13: When the concentrations of dissolved substances in

Q14: There have been five mass extinctions in