Biology, 08.12.2019 09:31 amadileaks
Which of the following is most a source of nitrogen that can lead to eutrophication of aquatic ecosystems?
a. runoff of fertilizer from yards b. treated sewage
c. runoff of manure from farms d. all of these
Answers: 2
Biology, 22.06.2019 01:50
Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above
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Biology, 22.06.2019 13:30
The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?
Answers: 1
Biology, 22.06.2019 15:40
Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation
Answers: 1
Which of the following is most a source of nitrogen that can lead to eutrophication of aquatic ecosy...
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