The major process regulating phosphorus availability for net primary production is the internal cycling of phosphorus from
A) organic to inorganic forms.
B) inorganic to organic forms.
C) atmospheric fixation.
D) rock weathering.
A
You might also like to view...
What is the only group of Mollusca that does NOT have a radula?
A) Bivalves B) Gastropods C) Chitons D) Cephalopods E) All mollusk have a radula.
The pigment that absorbs light energy (photons) in photosynthesis is
A) rubisco. B) chlorophyll. C) PEP. D) CAM.
A protein that stores oxygen in slow-twitch muscle fibers is ________
Fill in the blank(s) with correct word
The nucleus of an atom is usually made up of:
a. neutrons, which have no electrical charge. b. protons, which a positive charge, and neutrons, which have no electrical charge. c. protons, neutrons, and proteins that hold them together. d. neutrinos, which have no electrical charge. e. protons, which have a positive electrical charge, and proteins, which hold them together