Excitation-contraction coupling is a series of events that occur after the events of the neuromuscular junction have transpired. the term excitation refers to which step in the process?

excitation refers to the shape change that occurs in voltage-sensitive proteins in the sarcolemma.
excitation refers to the release of calcium ions from the sarcoplasmic reticulum.
excitation, in this case, refers to the propagation of action potentials along the sarcolemma.
excitation refers to the propagation of action potentials along the axon of a motor neuron.

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Does anyone know what a poms statement is for biology? i don't know what it is and i have an assignment on it tomorrow, will award the best answer a brainliest!