Which statement accurately describes the flow of energy in an ecosystem that lacks oxygen? Choose 1
Choose 1

(Choice A)
A
After energy enters the ecosystem via photosynthesis, energy flow stops, because all other major metabolic processes require oxygen.

(Choice B)
B
Energy flow occurs as organisms carry out anaerobic respiration, which does not require oxygen.

(Choice C)
C
Energy flow occurs as organisms use aerobic cellular respiration, which requires only carbon dioxide.

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

Identify the electromagnets with poles that are reversed from the electromagnet shown above