Of these events, the first to occur when a motor neuron stops sending an impulse to a muscle is . Of these events, the first to occur when a motor neuron stops sending an impulse to a muscle is . the pumping of calcium ions out of the cytoplasm and back into the sarcoplasmic reticulum the release of myosin heads from the thin filament thin filaments slide back to their relaxed positions proteins on the thin filaments block actin's myosin-binding sites all of these events occur simultaneously

What's the question?

It is maybe photosnyethsis

Ibelieve the answer is c. changes to biodiversity can positively and negatively affect an ecosystem.hope my answer has you : )

Hypoglycemia corresponds to a blood glucose lower than 0.60 g / l. his symptoms are: *a sudden energy drop.*nervousness, irritability, and tremors.*a pallor of the face.*sweats.*a headache.*nausea*palpitations.*an imperious hunger.*a state of weakness.*dizziness, drowsiness.*an inability to concentrate and an incoherent speech.*vagal discomfort signs of drug poisoning are variable depending on the substance taken. but for hypoglycemia, they affect the peripheral nervous system, then spread to the central nervous system if the blood glucose is very low, and this becomes a medical emergency.