Bacteria perform the following ecological roles. Which role typically does not involve symbiosis?
a. Skin commensalist
b. Pathogen
c. Decomposer
d. Bioluminescent bacteria in fish
e. Gut mutualist
Answer: c. Decomposer
You might also like to view...
At which point on the phylogeny shown did the amnion first appear?
A. C B. A C. B D. D E. E
After blood flows through the right atrium of the heart, its next major destination is the
A) right ventricle. B) left atrium. C) aorta. D) left ventricle. E) lungs.
Birds, like mammals, can regulate their body temperatures within close limits. Therefore birds and mammals are called
A. endothermic. B. heterothermic. C. ectothermic. D. poikilothermic.
Homeotic genes
A. are unique to fruit flies. B. encode transcription factors. C. encode transcription factors that regulate developmental genes. D. regulate developmental genes. E. are unique to fruit flies and encode transcription factors that regulate developmental genes.