The susquehanna river, which runs through the states of new york, pennsylvania, an maryland , received the title- america’s most endangered river in a 2005. one of the rivers problem’s results from the large number of sewage overflow sites that are found along the course of the river. these sewage overflow sites are a direct result of an increase in human population. what effect do you predict this will have on the biodiversity on the river ecosystem?

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).