What must be present at the postsynaptic site within a chemical synapse for the signal to be transmitted?

A pair of shoes has a mass of. 5kg. How much do they weigh on earth?

When does the nuclear membrane disappear?

What four things does the resistance of a wire depend on?

Copper is used in wiring because its metallic bonding gives its a high degree of freedom and the material a high conductivity

Which explanation most accurately describes convection within the ocean

How does the overtone number relate to the standing wave pattern number

Which of the following statements about Em waves is true? A. Em waves all have the same speed B. Em waves all have the same wavelength C. Em waves only travel through water D. Em waves all have the same amount of energy

A teacher has asked four students to state a scientific theory. Which student is correct?

What are the two main currents that affect the US on the east and west coast?

What role do volcanoes play in the flow of energy and cycling of matter on earth?