The graph shows carrying capacity in two different areas for two populations of salmon. Which statement below is most likely true about these areas?
A. Changes in the aquatic environment in Area A has made it less
hospitable to salmon
B. More species compete with salmon for food in Area A than in Area
B
C. Salmon fishing occurs in Area B but not in Area A
D. More food resources are available for salmon in Area B than in
Area A

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

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).

What is the most common structure of volcanoes?