The rate of production of new biomass by heterotrophs is called
A. primary productivity.
B. secondary productivity.
C. gross productivity.
D. net productivity.
E. consumer productivity.
Answer: B
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Where do the enzymatic reactions of the Calvin cycle take place?
A) stroma of the chloroplast B) thylakoid membranes C) matrix of the mitochondria D) cytosol around the chloroplast E) thylakoid space
Which of the following is an example of commensalism?
A. a tapeworm living in the intestines of a mule deer B. barnacles hitching a ride on the skin of a whale C. a female mosquito sucking blood from a musk oxen D. wood-digesting flagellates living in the gut of termites E. acacia trees and their ants Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about commensalism? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Bacteria in the ?-proteobacterial clade ________ are the most abundant organisms on Earth and demonstrate unique adaptations to life in the oligotrophic open ocean.
What will be an ideal response?
Which of the following prokaryotic nutritional
groups use organic substances for both carbon and energy? a. photoautotrophs b. chemoautotrophs c. photoheterotrophs d. chemoheterotrophs e. none of these