Biology, 28.10.2019 22:31 because061907
To measure primary production of algae in a stream, you place two sealed chambers in the stream, each enclosing the sediments as well as the water above them. one chamber is covered with black tape (blocking all light) while the other is transparent to light.
you measure dissolved oxygen (do) before and after a 24-hour incubation. do in the light chamber increases by 30 mg/m2 while do in the dark chamber decreased by 10 mg/m2.
what is the estimated re for the stream?
Answers: 1
Biology, 21.06.2019 20:00, zachstonemoreau
Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species
Answers: 3
Biology, 21.06.2019 22:20, molinaemily009
Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria
Answers: 1
To measure primary production of algae in a stream, you place two sealed chambers in the stream, eac...
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