Both Light Energy and Inorganic Nutrient Concentrations Are Highest in the Surface

Q47: Single-celled organisms can be found in all

Q48: Psycrophiles are organisms that<br>A) live in deep-water

Q49: If a marine animal has body fluids

Q50: Countershading of fish<br>A) makes them more visible.<br>B)

Q51: The richness and variety of life found

Q53: Two organisms that exhibit similar lifestyles and

Q54: Countershaded fish usually have a dark back

Q55: The biological pump<br>A) helps regulate atmospheric CO₂

Q56: Cyanobacteria are characterized by being<br>A) decomposers.<br>B) found

Q57: Photosynthesis is used by all autotrophs to