Which of the Following Best Matches the Description

Multiple Choice

Which of the following best matches the description?
-Accumulation of organic material that consists of or are produced by living things.

A) denitrifying bacteria
B) herbivore
C) omnivore
D) producer
E) trophic level
F) community
G) ectoparasite
H) limiting factor
I) none of above
J) secondary consumer
K) nitrogen cycle
L) biomass
M) habitat
N) carbon cycle
O) interspecific competition
P) nitrogen-fixing bacteria
Q) intraspecific competition