During the process of splitting water during photosynthesis, the first cyanobacteria released _____ into the
atmosphere.
a. oxygen gas
b. infrared heat
c. hydrogen gas
d. carbon dioxide
e. photons of light
a
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Soils are composed mostly of which of the following?
A. layers of many decaying elements B. fertilizers and other organic materials C. horse and cow manure D. layers of material mostly from rocks E. inorganic minerals and organic materials
You are working on a team to characterize a local lake's plankton community. Using a compound microscope, you isolate one specimen from a water sample. It is unicellular and has a specialized feeding groove cut into the cell surface. What cannot be true of this species?
A. It is heterotrophic. B. Its locomotion is facilitated by one or more flagella. C. Glycolysis takes place in a peroxisome. D. It is an osmotroph. E. Its locomotion is facilitated by inter-locking protein strips.
In seed plants, the microspores become ___.
A. ovules B. seeds C. pollen grains D. cones E. sperm cells
Which is not an output of fermentation?