Multiple Choice
What is nitrogen fixation?
A) the conversion of gaseous nitrogen into an organism friendly form (ammonia (NH3) .
B) preplanned setting of atmospheric levels of nitrogen at 78%
C) stabilizing elemental nitrogen into a gaseous two-atom molecule (N2)
D) the reduction of nitrate (NO3-) to gaseous nitrogen.
Correct Answer:
Verified
Correct Answer:
Verified
Q43: Which of the following characterizes a symbiotic
Q44: Which of the following does the photograph
Q45: How would an ecologist classify the organism
Q46: Which of the following statements about energy
Q49: How can humans interfere with the phosphorus
Q50: The red patch on each of the
Q51: Which of the following describes intraspecific competition?<br>A)one
Q52: What is an organism's role, or lifestyle,
Q53: What is an organism's realized niche?<br>A)all the
Q66: Define keystone species and discuss an example