Where does the signal originate in EEG?
Answer: Primarily the cerebral cortex, from pyramidal neurons
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Refer to the figure. To identify the molecule that accepts CO2, Calvin and Benson manipulated the carbon-fixation cycle by either cutting off CO2 or cutting off light from cultures of photosynthetic algae
They then measured the concentrations of various metabolites immediately following the manipulation. How would these experiments help identify the CO2 acceptor? A) The CO2 acceptor concentration would decrease when either the CO2 or light are cut off. B) The CO2 acceptor concentration would increase when either the CO2 or light are cut off. C) The CO2 acceptor concentration would increase when the CO2 is cut off, but decrease when the light is cut off. D) The CO2 acceptor concentration would decrease when the CO2 is cut off, but increase when the light is cut off. E) The CO2 acceptor concentration would stay the same regardless of the CO2 or light.
An example(s) that illustrate(s) natural selection
acting on behavioral traits that benefit individuals include(s) a. the effect of oxytocin on vole reproductive behavior. b. the different responses of young coastal and inland garter snakes to banana slugs. c. courtship behavior in sage grouses. d. the nest-decorating behavior of starlings. e. all of these.
The idiosyncratic hypothesis suggests that
A. Ecosystem function is independent of the number of species. B. Ecosystem function decreases as the number of species increases. C. Ecosystem function changes unpredictably as the number of species increases or decreases. D. Ecosystem function changes in a predictable, but non-linear manner with a change in species number. E. Ecosystem function decreases as the number of species decreases.
The term "archenteron" refers to the developing:a
gut. b. lung.
c. notochord. d. nerve tube. e. skin.