One of the assumptions that engelmann made was that the sun (his light source) emits equal numbers of photons at each wavelength in the visible spectrum. in reality, the sun's emission peaks in the yellow region of the spectrum, with relatively fewer photons emitted in the red and violet-blue regions.
recall that the action spectrum from engelmann's experiment plotted the rate of photosynthesis (as measured by oxygen production) versus wavelength. in each of the following graphs, the black line shows engelmann's original action spectrum deduced from the distribution of aerotactic bacteria around the alga.
which red line shows the same action spectrum corrected for the unequal number of photons emitted across the visible spectrum?

Which flexible structure that supports the nerve cord and led to the backbone

The accompanying figure shows the percent of selected dna sequences that match between a chimpanzee and other primates. these data support the hypothesis that the figure shows the percentage of selected d n a sequences that match between the chimpanzee and other primates. the human has an almost 98 percent match, the gorilla has an almost 97 percent match, the orangutan has a 96 percent match, the gibbon has an almost 95 percent match, and the old world monkey has an almost 92 percent match. the accompanying figure shows the percent of selected dna sequences that match between a chimpanzee and other primates. these data support the hypothesis that the figure shows the percentage of selected d n a sequences that match between the chimpanzee and other primates. the human has an almost 98 percent match, the gorilla has an almost 97 percent match, the orangutan has a 96 percent match, the gibbon has an almost 95 percent match, and the old world monkey has an almost 92 percent match. chimpanzees and gibbons are the most closely related the chimpanzee's closest surviving relative is humans orangutans are the primates least closely related to chimpanzees old world monkeys and gibbons are the most closely related

Describe two recent or ongoing space missions.