The South American indigenous people hunt using arrows or blowgun darts dipped in curare. This leads to asphyxiation/suffocation because the victim's respiratory muscles cannot contract. Using your knowledge of neurons, you can deduce that curare is most likely inhibiting the action potential of a motor neuron by: a. activating the voltage gated calcium channels.
b. inhibiting the acetylcholine gated channels.
c. stimulating the Na+/K+ ATPase pump.
d. inhibiting the action of the acetylcholinesterase in the synapse.
e. mimicking acetylcholine.

the answer is b.) hydrogen bonds between bases.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.