How Does Phosphorus Normally Enter Ecosystems

question 43

Multiple Choice

How does phosphorus normally enter ecosystems?

• A)from cellular respiration
• B)from photosynthesis
• C)from rock weathering
• D)from the atmosphere

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Definitions:

Siphons

Structures in some aquatic organisms that facilitate the exchange of water or air, often used for feeding, breathing, or locomotion.

Polychaete

A member of the class Polychaeta, these are marine annelid worms characterized by their segmented bodies, many with paired, paddle-like appendages called parapodia for movement and breathing.

Oligochaete

A class of annelids comprising earthworms and related species, characterized by having few setae (bristles) per segment.

Bivalvia

Bivalvia is a class of marine and freshwater mollusks with bodies enclosed by a two-part hinged shell, including clams, oysters, mussels, and scallops.