Tolerance to ADD medications can occur. ADD medications can help increase the levels of neurotransmitter in the synapse.
Nonmedical use of ADD medications can cause symptoms known as "the crash" after the initial flood of neurotransmitter wears off.
ADD symptoms may be caused by altered levels of neurotransmitter.
Amphetamine use can cause increased alertness and mental focus.

Which is the graph of the piecewise function f(x)? f(x) = image for option 1 image for option 2 image for option 3 image for option 4

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.

Which is abiotic? a. tree sap b. insect c. sunlight d. wood table