Your city is considering a proposal to build a new algae-based biofuel plant. What benefits would this have over traditional fossil fuels? (Check all that apply.)
_____ The kelp fronds would provide habitat for endangered sea otters.
_____ It contributes less carbon to the atmosphere overall.
_____ It is a renewable resource.
_____ Biofuel doesn’t need to be burned to provide energy.
_____ The system could be paired with wastewater treatment.
_____ The algae can be filtered from the water and used for fuel without refinement.
_____ The kelp fronds would provide habitat for endangered sea otters.
__X__ It contributes less carbon to the atmosphere overall.
__X__ It is a renewable resource.
_____ Biofuel doesn’t need to be burned to provide energy.
__X__ The system could be paired with wastewater treatment.
_____ The algae can be filtered from the water and used for fuel without refinement.
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If the boys progressed into full-blown hypothermia, this would be a failure of which regulatory system?
A. endodermic regulation B. temperature homeostasis C. ectothermic regulation D. glucose homeostasis
C3 plants are more susceptible to photorespiration than either C4 or CAM plants, so why do most
plants lack the C4 pathway?
a. Rubisco is more efficient in C3 plants when compared to rubisco C4 and CAM plants. b. Photorespiration is not a serious problem for most plants. c. Most plant species do not have vacuoles in their cells to store the malate generated from CO2 taken in during the night. d. There is an energetic cost to C4 and CAM pathways that only makes them advantageous in very hot and/or arid environments. e. Switching between C3, C4, and CAM photosynthesis is very difficult for most plants.
The two most basic steps of DNA replication are
A) primase causes primer to bind the template and ligase copies the template. B) helicase unwinds the template and DNA polymerase binds the template. C) leading strand is copied first and lagging strand is copied second. D) the new strand is denatured and a template is synthesized. E) the template is denatured and a new strand is synthesized.
Why do you use only some of the variation of your treatment variable (the component predicted in the first stage) when using an instrumental variable approach?
A. To avoid the heteroscedasticity problem. B. To have the estimate of the treatment effect be based only on variation that is exogenous variation to the other factors affecting the outcome. C. To get smaller standard errors. D. To have the estimate of the treatment effect be based only on variation of the treatment that is correlated with the outcome.