Select ALL statements that correctly describe events that occur during an action potential. a. Sodium-potassium pumps are activated when the membrane potential difference overshoots the resting potential. b. When voltage-gated Na channels are open, voltage-gated K channels are closed. c. When voltage-gated K channels are open, potassium ions (K ) move out of a neuron. d. Sodium ions (Na ) move out of a neuron in the first phase of an action potential, and then flow back into a neuron at the end of an action potential. e. Opening of voltage-gated Na channels causes more voltage-gated Na channels to open. f. Reaching the peak membrane potential reversal inactivates voltage-gated K channels.
Answers: 1
Biology, 22.06.2019 03:00, sophiav9780
Where does all the water go? according to the environmental protection agency (epa), in a typical wetland environment, 39% of the water is outflow; 46% is seepage; 7% evaporates; and 8% remains as water volume in the ecosystem (reference: united states environmental protection agency case studies report 832-r-93-005). chloride compounds as residuals from residential areas are a problem for wetlands. suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow, 60.4; seepage, 73.7; remaining due to evaporation, 26.4; in the water volume, 46.8. (a) compute the weighted average of chlorine compound concentration (mg/l) for this ecological system. (round your answer to one decimal place.) mg/l (b) suppose the epa has established an average chlorine compound concentration target of no more than 58 mg/l. does this wetlands system meet the target standard for chlorine compound concentration? yes. the average chlorine compound concentration (mg/l) is too high. yes. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is too high.
Answers: 3
Biology, 22.06.2019 11:10, tiannahwlit
Look at the photo of the leaf, which term best describes this leaf ? a-simple. b-parallel. c-lobed. d-tooth.
Answers: 2
Select ALL statements that correctly describe events that occur during an action potential. a. Sodiu...
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