Which of the following most often controls the rate of nutrient cycling in ecosystems?
A) rate of decomposition of detritus
B) primary productivity
C) secondary productivity
D) both primary and secondary productivity
Answer: A
Biology & Microbiology
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Which is a likely biotic factor limiting songbird distribution in Hawaii to alpine habitats?
A) temperature B) oxygen content C) moisture D) insects causing fatal diseases in songbirds at lower altitudes
Biology & Microbiology
Reptiles and birds differ from amphibians in that they lack a free larval stage. What adaptation allowed the elimination of this stage?
What will be an ideal response?
Biology & Microbiology
Why might a large scale approach to conservation be more effective than a species or population level approach
What will be an ideal response?
Biology & Microbiology
Plasma cells usually live for about one
A) week. B) month. C) year. D) decade.
Biology & Microbiology