Release of a neurotransmitter across the synapse is triggered by the entry of Ca++ into the presynaptic axon. No Ca++ entry means no transmission across the synapse.
Answer:
the difference between frog and grasshopper is that
frog is a small tailless amphibian of the order anura that typically hops or frog can be (offensive) a french person or frog can be a leather or fabric loop used to attach a sword or bayonet, or its scabbard, to a waist or shoulder belt
while grasshopper is a herbivorous insect of the order orthoptera noted for its ability to jump long distances.
frog is to hunt or trap frogs or frog can be to ornament or fasten a coat, etc with frogs or frog can be to unravel (a knitted garment).
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D. Bacteria
Nitrogen-fixing bacteria found in both the soil and root nodules of leguminous plants fix nitrogen into a form that can be used by plants.
